Initial commit with contributors
Added TO DOs
Refactor MongoContainer with MongoTemplate

Now it uses MongoTemplate. The Factory constructs a Spring Query
object, given a particular QueryDefinition. The generate Vaadin Query
object controls the query on the Mongo store.
Modified container that works with MongoTemplate
Updated mongo container with limit/skip
Support arbitrary Id; remove Items
test cases for last/firstitemid
Added paging with caching; initial buffering
Almost all interface implemented (non-buffered)
Test case for property ids
working but misbehaving with Table
Removed old files and dependencies; fixed property bugs
refactored package names
getItem lookup in buffered container
Buffered container is working, needs testing
BugFixes + refresh() method
Better Builder API, documentation
Bug fixin for page management
updated files with licensing info
documentation