new methods for Sphinx search
Sphinx fix, extended queries
review fix
Merge pull request #18 from yudina-m/develop

Sphinx
Sphinx unit tests
Add rekey data format
Merge pull request #21 from satan85/master

Add rekey data format
Merge pull request #19 from yudina-m/develop

Sphinx unit tests
Add grouping option to rekey data format
Merge pull request #22 from satan85/master

Add grouping option to rekey data format