DOC-672: edits from technical review
DOC-672: more edits from tech review
Added initial drafts of NetApp multipathing and ONTAP cluster-mode support.
Partial fix for DOC-730
Added 'miscellaneous' drop-down functions to dashboard navigation help page.
Merge remote-tracking branch 'upstream/master' into rn-known-issues
Added EUCA-6366 (DOC-866) and EUCA-6228 (DOC-867) to the RN.