Merge pull request #100 from lupatellimatteo/master

remove duplicated parameter
Merge pull request #18 from baasbox/0.8.3

update from origin 0.8.3
added geospatial queries
Merge pull request #101 from giastfader/0.8.3

added geospatial queries
English revision of geospatial queries
Merge pull request #21 from baasbox/master

pull from repository docs