Merge pull request #6 from asr716/master

Tim's 2nd Iteration Testing Code
Merge pull request #7 from asr716/master

Excuses and changing background colors
Merge pull request #8 from asr716/master

Modified LogActivity layout.
added tabbing, monthly charts
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Merge https://github.com/erkim/SleepTracker
added yearly graph
fixed bug with tabs, it now always works (hopefully)
Merge pull request #5 from erkim/master

Monthly/Yearly Graphs and Excuses