update api-auth dependency to accept 1.0.3 to avoid 1.1.0 ruby 1.8.7 problem
setup bundler in Rakefile
new git module and move git hook installation into git module with unit test
add install git hook option to murmurs script, add integration test for the full process of git hook integration
remove murmurs-git script
output next step doc after hook was installed
update doc after removed murmurs-git script
bump up version