Update composer.json

new version fix some issues ( _count with query filtered )
Changed servers to numeric indexes instead of associative indexes
Merge pull request #196 from daFish/fix/undefinedindex

Fixes undefined index error when populating index
Remove exception when multi_field type is used
Merge pull request #197 from craigmarvelley/allow-multi-field-type

Remove exception when multi_field type is used
rebase upstream
Merge pull request #161 from NicolasBadey/patch-1

Update composer.json