Removed duplicated  italian locale
Move the package to the ‘src’ dir.

This allows testing against the installed package instead of the 
version controlled source.
Fix paths in the makefile (prepend `src`)
Fix retrieval of oscar version in setup.py
Fix path in MANIFEST file (prepend `src`)
Merge pull request #1585 from django-oscar/move-to-src

Move the package to the ‘src’ dir.
Merge pull request #1584 from itbabu/fix-italian-translations

Remove duplicated italian locale