Release Name: 0.2.0

Notes:
Updated API for Sphinx 0.9.7-RC2


Changes:
* extended query mode with boolean, field limits, phrases, and proximity support (eg.: @title "hello world"~10 | @body example program); 
extended sorting mode (eg.: @weight DESC @id ASC); 
* combined phrase+statistical ranking which takes words frequencies into account (currently in extended mode only),