Adding comments to MainActivity.java - testing git hooks.
Update README.md

Mirroring Carl's todo's
Check boxes for different tipping functionalities added.
Passing parameters to second activity based on the checkbox values.
Removed potential bug in Constructor of Second
Commented Second's constructor.
Refactored some variable names in both MainActivity and Second.
Merge branch 'master' of git@github.com:pmsorhaindo/Splitter
FormatNumber's currency formatter added to screens displaying monetary
values. Second's layout has been slightly prettified so that everything
is centralized. Still need more prettification!
Update README.md
Update README.md
Update README.md
merge?