synchronization
synchronization start implementing.
manage redistribution.
atom module update.
atom module update.
synchronize logic.
odata implemented.
odata implemented.
sync move to ydn-db-sync repo.
merge with sync module provision.
compiled OK.
event name changes.
basic testing
implementing sync
When updating a store, multiEntry field was never not read.

The multiEntry option could only be set on store creation.
Another point but not fixed here is that a index is updated only if it's
name changes.
Merged in mrande/ydn-db/fix-multEntry (pull request #3)

When updating a store, multiEntry field was never not read.
inject sync module.
update unit test
0.2.0