Temporary parsing methods
Unittest added
Add parsing for nested parentheses
convert functions to class
Add documentation + refaktoring
convert cql operators to constants
remove unused function + tests
remove debug messages
remove unused queryLanguage
remove unused function
Define sctrict cql operators
Convert parsing of search expressions to strict cql
CQL parser moved to cql_strict_parser module
Only add " if no parentheses are used
Merge branch 'feature/1390-strict_cql_feature' into develop

Conflicts:
	ting_openformat.module