[i18n] Updated Persian language for 1.7.x

Full translated all English strings to Persian language for 1.7.x
version and upper.
Add the removed item ID to post remove cart

A plugin may require to know what item was removed from the cart, once it's already been removed. This can't be done with the action as it's too late.
Merge pull request #1468 from elliott-stocks/patch-6

Add the removed item ID to post remove cart
Add login form filter
Consistent spacing in text strings
remove empty spaces
Merge pull request #1470 from slip4stream/master

[i18n] Updated Persian language for 1.7.x
Merge pull request #1469 from sumobi/master

Add login form filter
Merge branch 'master' into release/1.8