Easevents Web: Solr Search for token input

* Added backend for solr search
* Added EdgeNTokenizer for solr in schema.xml
* Tokeninput working with solr in backend

TODO:

* Solr indexing for all models
* Search queries
* Solf filters
* Adding :with in solr searchable blocks in models.
Merge pull request #29 from slade1/souranil/solr

Easevents Web: Solr Search for token input