CORE-256 view support for multiple auditors in tree view - modal to follow
CORE-256 Multiple auditors now in Create/Edit Audit modal as well as tree view
Removing recommendation to move toggle helper to ggrc core, since it is now there
Fixing edit case for audit modal's auditors
Fixed mustache helpers around auditor (support multiple auditors), and prevent auditors from creating UserRoles during request/audit edit
Merge branch 'develop' into feature/multiple-auditors

Conflicts:
	src/ggrc/assets/mustache/audits/modal_content.mustache
Ensuring tooltips do not show up in the corner after autocomplete is selected
Comment typo fix
Merge pull request #1897 from reciprocity/feature/multiple-auditors

CORE-256 Support multiple auditors in UI