Added sorcery for user authentication and authorization

Added remember me function for personalised quotes in later version
Linked Quotes and Colours to Users

- Users now have Quotes and Colours associated with them
- A user can create a quote and colour and she can edit them
- A public quote or colour is accessible by all
- When on the root page, if the user is logged in, her quotes are show. Else only public quotes are shown.
Merge branch 'release/1.0' into develop
Merge branch 'feature/users' into develop
Merge branch 'develop'