Merge pull request #119 from mikemcgowan/travis

.travis.yml

README.md

classes/log/store.php

classes/task/emit_task.php

composer.json

composer.lock

db/upgrade.php

docs/developers.md

lib/emitter/docs/examples/assignment_graded.json

lib/emitter/docs/examples/assignment_submitted.json

lib/emitter/docs/examples/attempt_completed.json

lib/emitter/docs/examples/attempt_started.json

lib/emitter/docs/examples/attended.json

lib/emitter/docs/examples/course_completed.json

lib/emitter/docs/examples/course_viewed.json

lib/emitter/docs/examples/discussion_viewed.json

lib/emitter/docs/examples/enrolment_created.json

lib/emitter/docs/examples/event_enrol.json

lib/emitter/docs/examples/event_unenrol.json

lib/emitter/docs/examples/module_viewed.json