minor code cleaning

git-svn-id: http://montrealtransit-for-android.googlecode.com/svn/trunk@766 70aa8380-c310-11de-8ec6-755e00613368
minor code cleaning

git-svn-id: http://montrealtransit-for-android.googlecode.com/svn/trunk@767 70aa8380-c310-11de-8ec6-755e00613368
Update bus lines 41, 47, 128 & 171.
Fix 747 color.

git-svn-id: http://montrealtransit-for-android.googlecode.com/svn/trunk@768 70aa8380-c310-11de-8ec6-755e00613368
Create README.md