Moved session initialisation from index.php to controllers

No session creation for client machines anymore
Merge branch 'session' into wip
updated spanish translation
Fix for Network migration

serial_number is not unique..
Removed session write check

Does not work on IIS.
Upgraded to Font Awesome 4.0.3

And updated all relevant views
Merge branch 'font-awesome-4' into wip
Updated moment.js to 2.5.1

Bugfixes
Add index to munkireport.serial_number
Better icon for reports
Add debugging info to table query model
Trim newline from localadmins
Merge pull request #77 from nbalonso/spanish-translation

updated spanish translation
Fix admin: add authorized call
Merge branch 'wip' of https://github.com/munkireport/munkireport-php into bisd-development