Added blue comment to svgs

Working on #93

Added center,bottom, and top images for the comments. Updated
create_images script to create the appropriate images.
Added blue comment images

Added blue bubble images generated from the svg.
Work on #93

Got comments being loaded from the API as well as displayed haphazardly
on the screen. The images are messed up and not perfect, but it the
point is that the comments are there being displayed.

Need to add a scroll view though.
Merge branch 'android-comment_view' into android