Removed category form type usage from the category import

The category form type requires a security context token to display the
locale the current user have the right to edit. Unfortunately, the
import is run through command line, thus no token is available.

Anyway, the functionnal rule is to allow anyone who is launching the
script to import any data (meaning any locales). That is because import
will be most likely executed by cron script.
Fix phpcs
Fix phpDoc blocks
Merge branch 'master' into bugfix/category-import
Fixed attribute position update scenario
Separated import and export categories features
Merge pull request #360 from akeneo/bugfix/category-import

Removed category form type usage from the category import