Configured custom Factory class
Enable structure metadata to be modified by events
Allow mapping of roles and use of tags
Updated to Massive refactoring
Support for de-indexing nodes
Fixed CR

- Added headers
Merge branch 'develop' of git://github.com/sulu-cmf/SuluSearchBundle into feature/structure-metadata-load
cleaned code
fixed tests
Merge branch 'feature/structure-metadata-load' into develop