Added tests for getRevisions and getRevisionInfo from page changelog
Fixed file names of test classes
Merge remote-tracking branch 'origin/master' into changelogtestsonly
for negative or zero number of revs to return return empty array by getRevisions
Merge remote-tracking branch 'origin/master' into changelogtestsonly
Merge pull request #237 from splitbrain/changelogtestsonly

Added tests for getRevisions and getRevisionInfo from page changelog