Adding support to pass a serializer to elastica
Creating a serializer callable for every type in an index and passing it to elastica
Adding some documentation
Adding default callback for serialization if serialization is turned on
Adapting readme
Having a parameter name defining a class for the serializer callback, because directly putting service id or parameter doesn't work because these values are not available at bundle configuration time
CS fixes and minor tweaks in the Callback class
made the bundle compatible with Elastica 0.20.x
typo fix
various tweaks
tweaked the callback handling
updated for Elastica master changes
fixed Elastica dependency