automatic tags generator
split regex
basic refactoring, template tags, javascript changed
auto update tags
Comments added
update assets with new tags on object save
Fix template
Merge branch 'develop' into feature/tags_update

Conflicts:
	scarlet/cms/source/js/admin/modules/AssetSelect.js
	scarlet/cms/views.py
Refactor of auto tagging
Removed unused imports and fixed line lengths and spaces convention
Removed unused imports and fixed line lengths and spaces convention
Removed unused 'old_value' inside the save function of the Asset
space convention
space convention
Added conditional_escape import and removed unused ones
Fixed variable name
Removed unused variable and unused imports
space conventions
change if x == None for if x is None and removed extra spaces
changed if v: for if v is not none to skip empty strings