Merge pull request #20 from mereba/master

New layout
Major directory structure and switch to gradle build system
Update gitignore
Clean up to get app to attempt to build
Remove AnySoftKeyboard api library project as a gitsubmodule. Now this can be fetched from maven central
Pull latest changes from forked anysoftkeyboard
Get project to build
Merge changes with submodule
Remove uneeded xml file causing app to crash when you attempt to change a theme
Make lean dark theme's id unique
Update readme with build info
Minor punctuation fix
Update build script to to enforce zipalign
Minor detail update to build info
Update submodule
Update submodule
Clarify parts of build instructions