delete .DS_Store
update .gitignore
some nits when git is not properly configured
add executableExists method to ProcessUtils
verify that the executable we're going to spawn really exists so we don't crash file watchers
new files are marked with green color instead of orange in the project tree
Merge remote-tracking branch 'Azakur4/master'
Version 0.13.4

+ fix a bug with execute escaping
optimize BracketsEvents a bit, should help with the speed
UI tweaks in history viewer > actions