Added Javadoc comments to avoid mvn install errors.
Merge remote-tracking branch 'origin/master'
Implemented hide/unhide for a submission.  Also fixed testing for my prev. work.
Implemented hide/unhide for a submission.  Also fixed testing for my prev. work.
Broke the build... whoops.  Forgot to change submissions.  Should be fine now.
Added hide/unhide to implemented methods.
Merge pull request #74 from jonnykry/master

Added Javadoc comments to avoid mvn install errors
Merge pull request #75 from yankuangshi/master

Add java syntax highlighting to implemented_methods.md file