Added MultiPoint, MultiLine and MultiPolygon fields
Added new geospatial fields to th documentation
Merge pull request #749 from noirbizarre/multigeo

Multi geometry fields support
Fix multiple connections aliases being rewritten
Merge pull request #748 from bocribbz/fix-multiple-connections

Fix multiple connections aliases being rewritten
Merge branch 'parent-master'

Conflicts:
	mongoengine/connection.py