[CONFIGURATION-544] Updated dependencies in ant build.
[CONFIGURATION-544] Updated dependencies in ant build.

Some missing dependencies were added, the dependency to Commons Lang 2.6 was
removed. Thanks to Oliver Kopp for the patch these modifications were based
on.

git-svn-id: 0d31da9e303333003508381311333cf78a25d41b@1497559 13f79535-47bb-0310-9956-ffa450edef68

mohanaraosv/commons-configuration,apache/commons-configuration,mohanaraosv/commons-configuration,apache/commons-configuration,apache/commons-configuration,mohanaraosv/commons-configuration