Added code references to underlining text.
Merge branch 'master' of https://github.com/CMPUT301W14T3/Group-Project
Finished commenting all the classes.
Refactored the method collapseAll.
Refactored the Main Activity to delegate some of it's repsonsibility to a new class(MainActivityProduct) which is a controller to take some of the MainActivity's methods.
Added comments to new MainActivityProduct.
Merge branch 'master' of https://github.com/CMPUT301W14T3/Group-Project