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'
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::insertExtra integrated
insertExtra used in different modules

ContentBlocks, Faq, FormBuilder and Location now use
BackendModel::insertExtra()
BackendFaqModel updated

Now uses BackendModel::deleteExtraById() and BackendModel::updateExtra()
BackendContentBlocksModel updated

Now uses BackendModel::deleteExtraById() and BackendModel::updateExtra()
BackendLocationModel updated

Now uses BackendModel::deleteExtraById() and BackendModel::updateExtra()
Changelog updated
Merging master changelog
Merging master
Merging master changelog
Merging master
Additional cookie bar translations
Added cookie bar translations to settings module
Using Backend_cache_path
Creating shorter lines