Workaround for composite primary key

The composite_primary_keys gem responds with
[Key1,Key2...] and [Value1,Value2...]
on primary_key and id requests.
Basepack::AttrConfig converts the keys Array to String.
This workaround will transport the values to extjs
as a comma-seperated string too.
Fix edge gem declaration to point to Github.

There was a typo, which had it pointing to "git."
Merge pull request #149 from mudphone/master

Fix edge gem declaration to point to Github.
i18n grid
Update locales
Update spec for scoped grids
Update column renderers specs
Remove sqlite3
Configure spec path
Update row selection spec
Update pagination specs
Update grid pagination specs
Update grid scopes specs
Clean up no longer used fixtures
Update integration tests for grid filters
Specify proper Core and Rails dependencies
I18n.enforce_available_locales = true
Add 0-9 branch to travis config
Bump version to 0.10.0.rc1
Add versioning info to README