Merge pull request #740 from pawl/fixbs2gap

Fix gap between actions and model-list (in bs2), fix form-horizontal styling
[fix] Inline form field id assigning logic
Cleaned hanging spaces
Merge pull request #742 from rma4ok/master

[fix] Inline form field id assigning logic
Made all type filters case-insensitive for all backends
Translation to Catalan
Merge pull request #747 from gisce/ca_ES_translations

Translation to Catalan
Fileadmin crash on cd to empty dir fixed
Merge pull request #750 from tsyganov-ivan/master

Fileadmin crash on cd to empty dir fixed
Minor fixes and improvements
Merge branch 'master' of github.com:mrjoes/flask-admin
add base template specific styling to base.html
improve styling of inline forms
simplify css for clear search icon
add <hr> and remove btn-cancel to simplify css
simplify css by removing btn-filter and using btn-default and form-horizontal
remove unnecessary CSS