Gradle: Set project version

This is usually a version number quite similar to the BouncyCastle
version.

Author: rtyley

build.gradle

@@ -118,7 +118,7 @@ subprojects {
 
     sourceCompatibility = 1.5
     targetCompatibility = 1.5
-    version = '1.56-SNAPSHOT'
+    version = '1.56.0.0'
 
     test {
         systemProperty 'bc.test.data.home', bcTestDataHome