Collision with plugin data

Fixed collisions with automatic plugin data translations by adding
context.
Added makepot.bat as ignore

If you want to run a new pot make: makepot wp-plugin source
source\languages\schema.pot
Updated default catalogus with new pot
Updated Italian catalog

Remains 11 fuzzy and 3 untranslated
Extra commit to support casefixed files. Read!

The naming convention of the .mo files is based on the ISO-639 language
code (e.g. pt for Portuguese) followed by the ISO-3166 country code
(e.g. _PT for Portugal or _BR for Brazil). However, Github doesn't allow
case changes for files as commits. Some clients will correct change the
files names and some won't. Please update your copies if they don't on
the next commit.
Fixed language files for naming conventions

The naming convention of the .mo files is based on the ISO-639 language
code (e.g. pt for Portuguese) followed by the ISO-3166 country code
(e.g. _PT for Portugal or _BR for Brazil). However, Github doesn't allow
case changes for files as commits. Some clients will correct change the
files names and some won't. Please update your copies if they didn't
with THIS commit.
Fixed faulty field Productor in Producer
Finished Dutch translation