Add MimeType to Context

Depending on the content-type parameter
the Context can include some module or not.
Bulk creator , create but return resource is missing.
Bulk creator works.
Bump version 2.3.0.2.0

Add bulk creation on POST :model
Merge pull request #169 from maxigit/52616817_add_generic_bulk_creation_on_mime_type

52616817 add generic bulk creation on mime type