Simplify entries count calculation
SUP-814 #time 1h
Should check $recursive flag before reset parent count.
Calculate the entries count assuming the sphinx is not updated yet
Support multiple increment and decrements in the same session
Use entry filter in order to use the sphinx to count entries
Merge pull request #352 from kaltura/IX-9.3.0-SUP-814

Ix 9.3.0 sup 814