minor indentation fixes
ARGO-330:  clean up fetch_druids for both readability and functionality (make hanldling empty druid lines more robust).  fix add_collection wiring so that collection_id is posted to add_collection_url.
ARGO-330:  fix and refactor version opening

include DorObjectHelper so that can_open_version? method is available.  switch the prepare method to use that check for determining whether an item can be opened for modification.

refactor prepare and open_version methods so that all operations performed on the object being opened are centralized inside the dor-services open_new_version method (which is being called anyway).

fix unit tests so that they test the new approach properly.  fix unit tests so that the existing @pid instance var gets used consistently instead of the inline string its equivalent to.
ARGO-330: fix typo so that bulk validate works
ARGO-330: disable remediate mods button and function
ARGO-330: disable remediate_mods method
ARGO-330: fix typo so that discoverable method works
Merge branch 'develop' of https://github.com/sul-dlss/argo into develop
ARGO-330: fix set_rights so that it calls process_post with the params in the right order and a valid var for the URL to hit
ARGO-330: fix fix_provenance so that it uses the right URL (fix_provenance_url)
ARGO-330: fix uninitialized javascript var and bad return behavior in rails controller so that bulk source id update works
ARGO-330: update dor-services gem for open_new_version refactor
Merge branch 'develop' of https://github.com/sul-dlss/argo into develop