first draft of chunks_entity_reference
[CSUMB-252] A start towards multiple chunk type instances per field instance. Still needs some work.
[CSUMB-252] Functionality is finished for multiple chunk instances of the same type existing on the same field instance. Now its time for some a bit of cleanup and beautification.
[CSUMB-252] Merge branch 'devel' into 252-entity-reference-chunk
[CSUMB-252] Ajaxify the chunk instance settings actions and add a #submit handler so chunk_instances gets saved as an array of chunk instances keyed by the name.
[CSUMB-252] Make the chunk instances settings form pretty.
Merge branch 'master' into entity_reference
Merge branch 'devel' into entity_reference