GEODE-3233 Prefix distribution files with apache-

This closes #11

(cherry picked from commit f1ea573006990e9c487e0133a5d4283cc079517c)
diff --git a/gradle/release.gradle b/gradle/release.gradle
index f429af2..bd5aada 100644
--- a/gradle/release.gradle
+++ b/gradle/release.gradle
@@ -58,6 +58,7 @@
 
 distributions {
   main {
+    baseName = 'apache-' + baseName
     contents {
       from (rootDir) {
         exclude 'KEYS'