Add Travis CI config.

//FREEBIE
add emoji as individual assets
wip for tab strip
tab pages
improvements, but still shit memory usage
sprites generated, ugh.
start to strip out Emoji and work in spriting
wewps
spriting finally works
remove unsprited emoji
fill in the different res drawables and sizes
fixed sprites missing last row and single-byte unicode being broken
correct emoji ranges
add explanation for range
remove unused hotdog sprites and refactor
recents readded, missing assets