Fixed tooltips sometimes disappearing in modals
Added alphabetical sorting to People/Roles/Authorizations widgets on the admin dashboard
Extract context-query-filter code into `ggrc.rbac`

* Make consistent application of context filters easier
Use `session._permissions_loaded` to avoid duplicate query

* Previously, UserRole query was being executed many times per request
Adding allow-same-origin for iframe previews in case of logins
Imports will show cell error for missing Titles
Merge pull request #389 from reciprocity/feature/wysiwyg_tooltip

Fixed tooltips disappearing in modals
Merge pull request #397 from reciprocity/feature/iframe_tweak

Added allow-same-origin to iframe sandbox
Merge remote-tracking branch 'origin/develop' into feature/import_work_oct1

Conflicts:
	src/ggrc/converters/base_row.py
Merge pull request #398 from reciprocity/feature/import_work_oct1

Imports require title and will notify user when missing
Merge pull request #391 from reciprocity/feature/admin_people_sort

Added alphabetical sorting to People/Roles/Authorizations widgets in the admin dashboard
Fix test to insert join object in correct context
Merge pull request #400 from reciprocity/feature/rbac_fixes

RBAC system roles fixups
Merge branch 'develop' into feature/templatedownload
conditional display of the export/template button