Merge tag 'v0.2.0'

v0.2.0

 * test: replace slc dep with static fixture (Ryan Graham)

 * test: validate test setup (Ryan Graham)

 * test: ensure build can be run on HEAD (Ryan Graham)

 * Refactor common git ref lookup into utility (Ryan Graham)

 * Don't commit build results if unchanged (Ryan Graham)

 * Only merge HEAD into deploy if necessary (Ryan Graham)

 * Make --onto a modifier for --commit (Ryan Graham)

 * git: Override GIT_INDEX_FILE for all git commands (Ryan Graham)

 * Ensure create --onto branch if it doesn't exist (Ryan Graham)

 * Use git detection to inform defaults (Ryan Graham)

 * test: sls-sample-app loopback-example-app rename (Ryan Graham)

 * test: replace onto tests with shell script (Ryan Graham)

 * test: support mix of JS and shell based tests (Ryan Graham)

 * onto: fix typo in usage message (Sam Roberts)

 * Update package license to match LICENSE.md (Sam Roberts)