Merge pull request #1 from 3Dpals/master

Get current state
<AJAX>Create new model
<Services> Fix wrong parameter name in JSON response.
<Services> Fix #16.
<Services> Username no longer index for User + Simple Authentification.
<Model> Add apiToken to User.
<Security> Add token authentification + permissions to protect API. Fix #7.
<Services> Possibility to search per username for GET /users.
<Front-End>Pre-final Version
Merge pull request #18 from Aldream/sculptgl

SculptGL Interface
Merge branch 'fix-comments' of https://github.com/Aldream/3Dpal into Aldream-fix-comments

Conflicts:
	services.js
Merge branch 'search-users' of https://github.com/Aldream/3Dpal into Aldream-search-users
Merge branch 'master' of https://github.com/3Dpals/3Dpal
<Services> Add offset & limit parameters to getUserModels
<Merge> Services.js
<Typo>Merge comment deleted in file.
<Auth> Redirection to previously requested page after login.
<Services> Fix #21.
<Services> Small fix for POST /users.
<Views> Added backend fix for issue #24