Fix when load statistic, include versions that are active and readonly.
Merge pull request #296 from zanata/rhbz1033446

Fix when load statistic, include versions that are active and readonly.
Merge branch 'integration/master' into rhbz1033439

Conflicts:
	zanata-war/src/main/java/org/zanata/service/VersionGroupService.java
	zanata-war/src/main/java/org/zanata/service/impl/VersionGroupServiceImpl.java