contentDescription, matchingConstraints and tags

added contentDescription and matchingConstraint fields to create and view need
added it to the graph
added vocabulary entry for SIOC_T:Tag
added it to the graph
check for fieldnames
fixed tags bug
fixed matcher bug
code cleanup
updated schema to reflect the currently used version
fixed minor bugs

no more deprecation
checking for adequate need type now works
changed some variable names
building new idea for queries
solr deployment

added a profile to deploy solr easily (you still have to restart tomcat)
added versions and additional plugins to main pom
removed logging
updated schema file
removed unused dependencies
Some refactoring has been done and two filters have been implemented
Merge branch 'title_desc_matching' into feature-metadata

Conflicts:
	webofneeds/won-matcher-solr/src/main/java/won/matcher/query/TextDescriptionMatcher.java
Some refactoring has been done and two filters have been implemented
Added SOLR index fields to core
added solr for testing purposes with real config and schema
included dependencies needed for testing
impülementing solr matcher test class. almost works
testing works