Chuan/Chris - added connectivity checker class.
Merge branch 'master' of https://github.com/CMPUT301F14T12/OctoAsk
Merge branch 'master' of https://github.com/CMPUT301F14T12/OctoAsk
Merge pull request #30 from 0nebit/master

Added network checker.
Merge branch 'master' of https://github.com/CMPUT301F14T12/OctoAsk