Created editor schema
- Added schema generation configuration to root pom
Added editor-schema to editor-core
Added GameMetaData (as substitute of Project)
Effectively substitute Project for GameMetadata in the editor
Merge pull request #106 from anserran/metadata

Created editor-schema and GameMetadta
Added Lucene 3.5 dependency for full-text search
Added an Index to the Model, to be updated on model switch or change
Temp commig