Misc GUI fixes, and warning removals

Chnaged 'My Notes' to "Safety Markers' in action bar.  Changed 'My
Trips' to 'Trips' in action bar.  Changed background of 'Mark Safety
Problem' button to same as other buttons.  Hid status box with calories
and CO2 usage from main screen (code is still present).
Changed safety markers to use severity related icon

Changed the icons used on the safety marker list items to correlate to
note severity.
Updated program and notification icons.

Moved to new ORcycle icon with blue bike and Oregon background
Color work.

Did some adding of colors to various layouts and activities.
Merge pull request #46 from mafiglio/MiscGuiFixes

Misc gui fixes