Add metadata version manage
Modify EntityMetadataPartHandler
Merge remote-tracking branch 'origin/develop' into feature/MetadataVersion

Conflicts:
	src/Orchard.Web/Modules/Coevery.Entities/Coevery.Entities.csproj
Fix folder error
Added entity meta data creation
Changed entity grid module
Changed jqGrid row model
Added field creation
Modify EntityMetadataPartHandler
Add publish button
Modify EntityMetadataPartHandler
Fix check entity error
Changed entity deletion
Fixed create bug
Changed field deletion.
Changed back end navigation
Add prevention for unpublished entity operations.
Edit entity and edit field
Fix conflicts
Added Update Setting Method.