Update model.php

Bugfix: getByTags not working (backend)

Faq records with the tag added did not show in the list of used tags.

How to simulate problem?
- Add a tag to a faq question
- Goto Backend > Modules > Tags > [select tag] > Edit
- The faq question is not listed
Merge remote-tracking branch 'forkcms/master'
folder should be included
Make installer fully PSR2 compliant
Make backend core PSR compliant
Make analytics module PSR compliant
Add a space after if and foreach
Make Authentication module PSR2 compliant
Make the Blog module PSR2 compliant
Make the ContentBlocks module PSR2 compliant
Make the dashboard module PSR2 compliant
Make the extensions module PSR2 compliant
Bugfix for CoreMailer
LoginLink widget added

Display a "login" link or when logged in "welcome user x"
We can import a .csv with profiles
We can export (download) an import template
Changelog updated
BackendModel::updateExtra now has serialization
Changelog updated
redefine key and double check for 'data'