ARGO-302: fix code to correspond with some updated workgroup names:  dlss:dor-admin -> sdr:administrator-role, dlss:dor-viewer -> sdr:viewer-role, dlss:dor-manager -> sdr:manager-role
ARGO-302: add support for renamed DOR-wide roles: dlss:dor-admin -> sdr:administrator-role, dlss:dor-manager -> sdr:manager-role, dlss:dor-viewer -> sdr:viewer-role
ARGO-273: fix reference to non-existent controller instance var in template so that can_view_content? call gets a useful (non-nil) value.  remove unused locals value from render call in render_document_sections in argo_helper.
Merge branch 'develop' of https://github.com/sul-dlss/argo into develop
remove specification of development from group list used for capistrano stuff (so deployment is the only group in the list)