.gitignore added

Change-Id: I28779386edd451f797e1ee52a172bdbd5b02eb71
the message "is not a valid option" removed as locale specific

Change-Id: I645ee7f09dece03250323ef4888928d9cfeee248
README replaced w/ README.md

Change-Id: I9c0e9fb32ef4be44ce68f4f3d8af345ab67f82d1
added composer.json

Change-Id: I6f93e87a9af5e90c23d4fed96eecf1e7ef9f17cc