Make doctrine light-weight for composer
Make doctrine a light-weight package based in http://getcomposer.org/doc/02-libraries.md#light-weight-distribution-packages
XSD, license and upgrade should be distributed
Update .gitattributes

Fix TYPO
Merge pull request #543 from carlosbuenosvinos/master

Make doctrine a Light-weight distribution package in Composer
Remove README.markdown from .gitattributes