Merged everything to my own copy of develop branch (at last)
extractUnit now can take null as arg without errors
mkdir is done if needed (because there is no ./releases/current folder in newly forked repo)
jshint fixes + minor stuff

added dy = "-10px" by default, which is the same as RenPy's "with
vpunch" (seems more popular than hpunch)
Merge pull request #18 from lolbot-iichan/develop

New shake effect implemented by lolbot-iichan. Thanks for contributing!