Minor image size changes.
Refactoring the libs directory so .jars are top-level. This is important
for building using ant. Removed all references to appcompat.v4 (no more
subtyping ActionBarActivity.) It is currently not being used and is not
worth the trouble to get the ant build to work.
More refactoring of library, changed API_URLs to refer to my laptop ip (we need a better way to resolve this for multiple developers).
Added support v4 lib.