Use scenes for handling overlays.
Rename masterVolume to just volume, and add a mute flag and command.
Move jshint parameters to a configuration file. Split test and lint parts of Makefile. Lint yuu/pre.js, and fix the issues that came up in it.
Extend command syntax to allow shell-ish &&, ||, and ; connectives.
Allow binds with more keys that are lower on the stack (but still not below a modal/defaulted set) to preempt binds higher on the stack. Probably I will regret this.
Add control+s bind for muting/unmuting audio with a toast feedback.
Replace Android Emoji with Symbola because the former lacks some useful characters. (Particularly U+1F507, even though it has U+1F50A).