added node hooks setup and jshint
Merge branch 'master' of github.com:pre-commit/pre-commit
Nicer interfaces
Merge remote-tracking branch 'origin/performance_test' into performance_test

Conflicts:
	pre_commit/languages/python.py
Merge remote-tracking branch 'origin/master' into performance_test

Conflicts:
	pre_commit/languages/python.py