Fix download links (correctly set sha512 instead of sha1, and use https on links)
diff --git a/src/main/webapp/download.html b/src/main/webapp/download.html
index a8e8ebc..09766e9 100644
--- a/src/main/webapp/download.html
+++ b/src/main/webapp/download.html
@@ -102,9 +102,9 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/unomi/1.5.6/unomi-1.5.6-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/unomi/1.5.6/unomi-1.5.6-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.6/unomi-1.5.6-src.zip.asc">PGP</a>]
                           [<a target="_blank"
-                              href="https://archive.apache.org/dist/unomi/1.5.6/unomi-1.5.6-src.zip.sha1">SHA512</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.6/unomi-1.5.6-src.zip.sha512">SHA512</a>]
                       </td>
                       <td><a target="_blank"
                              href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12319220&version=12350114">Release
@@ -129,9 +129,9 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/unomi/1.5.5/unomi-1.5.5-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/unomi/1.5.5/unomi-1.5.5-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.5/unomi-1.5.5-src.zip.asc">PGP</a>]
                           [<a target="_blank"
-                              href="https://archive.apache.org/dist/unomi/1.5.5/unomi-1.5.5-src.zip.sha1">SHA512</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.5/unomi-1.5.5-src.zip.sha512">SHA512</a>]
                       </td>
                       <td><a target="_blank"
                              href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12319220&version=12349415">Release
@@ -156,9 +156,9 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/unomi/1.5.4/unomi-1.5.4-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/unomi/1.5.4/unomi-1.5.4-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.4/unomi-1.5.4-src.zip.asc">PGP</a>]
                           [<a target="_blank"
-                              href="https://archive.apache.org/dist/unomi/1.5.4/unomi-1.5.4-src.zip.sha1">SHA512</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.4/unomi-1.5.4-src.zip.sha512">SHA512</a>]
                       </td>
                       <td><a target="_blank"
                              href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12319220&version=12349372">Release
@@ -183,9 +183,9 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/unomi/1.5.3/unomi-1.5.3-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/unomi/1.5.3/unomi-1.5.3-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.3/unomi-1.5.3-src.zip.asc">PGP</a>]
                           [<a target="_blank"
-                              href="https://archive.apache.org/dist/unomi/1.5.3/unomi-1.5.3-src.zip.sha1">SHA512</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.3/unomi-1.5.3-src.zip.sha512">SHA512</a>]
                       </td>
                       <td><a target="_blank"
                              href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12319220&version=12349318">Release
@@ -210,9 +210,9 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/unomi/1.5.2/unomi-1.5.2-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/unomi/1.5.2/unomi-1.5.2-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.2/unomi-1.5.2-src.zip.asc">PGP</a>]
                           [<a target="_blank"
-                              href="https://archive.apache.org/dist/unomi/1.5.2/unomi-1.5.2-src.zip.sha1">SHA512</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.2/unomi-1.5.2-src.zip.sha512">SHA512</a>]
                       </td>
                       <td><a target="_blank"
                              href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12319220&version=12348274">Release
@@ -238,9 +238,9 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/unomi/1.5.1/unomi-1.5.1-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/unomi/1.5.1/unomi-1.5.1-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.1/unomi-1.5.1-src.zip.asc">PGP</a>]
                           [<a target="_blank"
-                              href="https://archive.apache.org/dist/unomi/1.5.1/unomi-1.5.1-src.zip.sha1">SHA512</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.1/unomi-1.5.1-src.zip.sha512">SHA512</a>]
                       </td>
                       <td><a target="_blank"
                              href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12319220&version=12345521">Release
@@ -265,9 +265,9 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/unomi/1.5.0/unomi-1.5.0-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/unomi/1.5.0/unomi-1.5.0-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.0/unomi-1.5.0-src.zip.asc">PGP</a>]
                           [<a target="_blank"
-                              href="https://archive.apache.org/dist/unomi/1.5.0/unomi-1.5.0-src.zip.sha1">SHA512</a>]
+                              href="https://archive.apache.org/dist/unomi/1.5.0/unomi-1.5.0-src.zip.sha512">SHA512</a>]
                       </td>
                       <td><a target="_blank"
                              href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12319220&version=12345521">Release
@@ -292,7 +292,7 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/unomi/1.4.0/unomi-1.4.0-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/unomi/1.4.0/unomi-1.4.0-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/unomi/1.4.0/unomi-1.4.0-src.zip.asc">PGP</a>]
                           [<a target="_blank"
                               href="https://archive.apache.org/dist/unomi/1.4.0/unomi-1.4.0-src.zip.sha1">SHA1</a>]
                       </td>
@@ -319,7 +319,7 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/incubator/unomi/1.3.0-incubating/unomi-1.3.0-incubating-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/incubator/unomi/1.3.0-incubating/unomi-1.3.0-incubating-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/incubator/unomi/1.3.0-incubating/unomi-1.3.0-incubating-src.zip.asc">PGP</a>]
                           [<a target="_blank"
                               href="https://archive.apache.org/dist/incubator/unomi/1.3.0-incubating/unomi-1.3.0-incubating-src.zip.sha1">SHA1</a>]
                       </td>
@@ -346,7 +346,7 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/incubator/unomi/1.2.0-incubating/unomi-1.2.0-incubating-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/incubator/unomi/1.2.0-incubating/unomi-1.2.0-incubating-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/incubator/unomi/1.2.0-incubating/unomi-1.2.0-incubating-src.zip.asc">PGP</a>]
                           [<a target="_blank"
                               href="https://archive.apache.org/dist/incubator/unomi/1.2.0-incubating/unomi-1.2.0-incubating-src.zip.sha1">SHA1</a>]
                       </td>
@@ -373,7 +373,7 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/incubator/unomi/1.1.0-incubating/unomi-1.1.0-incubating-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/incubator/unomi/1.1.0-incubating/unomi-1.1.0-incubating-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/incubator/unomi/1.1.0-incubating/unomi-1.1.0-incubating-src.zip.asc">PGP</a>]
                           [<a target="_blank"
                               href="https://archive.apache.org/dist/incubator/unomi/1.1.0-incubating/unomi-1.1.0-incubating-src.zip.sha1">SHA1</a>]
                       </td>
@@ -400,7 +400,7 @@
                           <a target="_blank"
                              href="https://archive.apache.org/dist/incubator/unomi/1.0.0-incubating/unomi-1.0.0-incubating-src.zip">zip</a>
                           [<a target="_blank"
-                              href="http://archive.apache.org/dist/incubator/unomi/1.0.0-incubating/unomi-1.0.0-incubating-src.zip.asc">PGP</a>]
+                              href="https://archive.apache.org/dist/incubator/unomi/1.0.0-incubating/unomi-1.0.0-incubating-src.zip.asc">PGP</a>]
                           [<a target="_blank"
                               href="https://archive.apache.org/dist/incubator/unomi/1.0.0-incubating/unomi-1.0.0-incubating-src.zip.sha512">SHA512</a>]
                       </td>