Update catalan.php

Update new strings in verions 1.4
Merge pull request #225 from acacha/patch-1

Update catalan.php
unset_view an alias to unset_read()
small bug fix.
change logs update.
Pull request: #228
Merge remote-tracking branch 'upstream/master'

Conflicts:
	application/libraries/Grocery_CRUD.php
	assets/grocery_crud/languages/catalan.php