Fix some random things (all in one megacommit)

Created by: fat-tire

Hey guys.. made some changes.

• fix build (it was crashing/not building)
• upgrade gradle, android plugin, tools, & libraries
• make sidebar work better
• add menubar toggle item for sidebar
• fix some wording
• move strings to resource
• build info gets updated in sidebar thing
• put something in the readme.
• more

it's super late (4am now) so hopefully this isn't awful. Also, I get a java.lang.RuntimeException when I try to untar the chroot...