authcontroller, profile model, and routes changed
[Backend] Fixed activityJoin POST
Merge branch 'master' of github.com:omfgitsjack/justplay into backend
Update README.md
Update README.md
fixed swagger php package and remodified configuration, localhost:8000/api-docs should work
Merge branch 'master' of github.com:omfgitsjack/justplay

Conflicts:
	app/config/app.php
	app/controllers/AuthenticationController.php
	app/models/Profile.php
	composer.json
[Yichen] modified some backend components
[Backend] Refix swagger php again
[Front-end] [#85] [#147] Refactor Authentication, Added logic to detect isOwner & is Participant
Merge branch 'master' of https://github.com/omfgitsjack/justplay into frontend