post metadata
Merge pull request #1 from mbborgez/feature/postMetadata

Post Metadata
Moving CMS to Bennu Toolkit provided by Bennu
Fixing bug related to creating posts without categories
Fixing bug related to htmleditor file d&d
Changing to fenixedu maven repository
moving toolkit into bennu, removing references and depending from top dependency
removing toolkit files, now the toolkit lives in bennu portal