Add basic compilation instructions to the README
.gitignore temporary build files (on mac)
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/gligli/p600fw
ui: don't quantize "data pot" continuous params

Continuous parameters assigned to the data pot were not adjustable in
increments smaller than CHANGE_DETECT_THRESHOLD even though the LCD
misleadingly suggested they were changing (they weren’t).
Merge pull request #22 from snickell/master

Don't quantize continuous parameters assigned to the data (ie: speed) pot