Ensure the *.apache.org URLs go somewhere

There are DNS definitions for all these retired podlings, but no websites
and no redirects, so ensure the URLs go somewhere useful
diff --git a/assets/retired/blur/index.html b/assets/retired/blur/index.html
new file mode 100644
index 0000000..30e84fd
--- /dev/null
+++ b/assets/retired/blur/index.html
@@ -0,0 +1 @@
+<html><head></head><body></body></html>
diff --git a/assets/retired/cmda/index.html b/assets/retired/cmda/index.html
new file mode 100644
index 0000000..30e84fd
--- /dev/null
+++ b/assets/retired/cmda/index.html
@@ -0,0 +1 @@
+<html><head></head><body></body></html>
diff --git a/assets/retired/droids/index.html b/assets/retired/droids/index.html
new file mode 100644
index 0000000..30e84fd
--- /dev/null
+++ b/assets/retired/droids/index.html
@@ -0,0 +1 @@
+<html><head></head><body></body></html>
diff --git a/assets/retired/kalumet/index.html b/assets/retired/kalumet/index.html
new file mode 100644
index 0000000..30e84fd
--- /dev/null
+++ b/assets/retired/kalumet/index.html
@@ -0,0 +1 @@
+<html><head></head><body></body></html>
diff --git a/assets/retired/wave/index.html b/assets/retired/wave/index.html
new file mode 100644
index 0000000..30e84fd
--- /dev/null
+++ b/assets/retired/wave/index.html
@@ -0,0 +1 @@
+<html><head></head><body></body></html>