versioncontrol 5.x-1.2

Bugfix release. It includes only one real fix (actually returning the result for the versioncontrol_insert_{commit,branch_operation,tag_operation}() functions) but that fix is required for versioncontrol_svn to work correctly. There's also an API documentation fix in versioncontrol_fakevcs.module, but that one doesn't affect the correct function of the modules.