Opsworks Update App Settings with CD

Merge pull request #21 from easybiblabs/opsworks-update-app-on-success

opsworks update app on success

Adding deploy targets for CI

CI: re-adding previous targets

those targets did not work anyway since the directory they should be in did not exist

Updated License & documentation fix

Merge pull request #17 from easybiblabs/t/fixes

Fixes: Links and license

Minor updates to requirements and composer

Merge pull request #12 from easybiblabs/t/no-dev-master

Minor improvements

0.3.1: Merge pull request #10 from easybiblabs/t/health

Added basic php health check