* parser implementation
* add support for quoted strings
* add support for tags
* ignore empty tags
* implicit and
* prepare query conversion by disabling tests
* convert query logic
* fix nested combined tag searches
* simplify query logic
* Add special keyword support to parser
* Add special keyword support to query builder
* Handle invalid queries in query builder
* Notify user about invalid queries
* Add helper to strip tags from search query
* Make tag cloud show all tags from search query
* Use new method for extracting tags
* Add query for getting tags from search query
* Get selected tags through specific context
* Properly remove selected tags from complex queries
* cleanup
* Clarify bundle search terms
* Add documentation draft
* Improve adding tags to search query
* Add option to switch back to the old search
