WIP: create ShareDocs service and refactor most of the visual functionality into it. Actual document sharing not working
get sharing (mostly) working again. Verify document is sharable before sharing
Merge branch 'bulk_documents' into better_doc_sharing_state

Conflicts:
	documents/partials/companyList.html
pre-populate the list of investors to share to if issuer is in the middle of sharing
inform the user when automatically setting the document preparation list
update share sidebar recipient list to be new style (static list with more detail to come)
show "Request Signature" for any document thats prepared in its own right or has personal preparations
add per-person document state to share bar
Merge branch 'better_doc_sharing_state' into bulk_documents