patching spec to make it work with impermanent-memberships

This is not a proper solution but a quick one.
Left a comment for the proper solution.
force fetching of global_roles
Merge pull request #22 from finnlabs/fix/failing_cukes

force fetching of global_roles
don't use url but path for form action

URLs are potentially broken (wrong scheme).
fixed copyright
clarifying spec's intent
rubocopify spec
Merge pull request #23 from finnlabs/fix/cannot_assign_global_role_7187

Fix #7187: Cannot assign global role
Attache onclick event for global roles checkbox, when form didn't pass validation
Display only global group permissions, when global role is checked and form is submited without name
Acceptance tests for empty name form submit
Check if block with global roles is visible/hidden
Merge pull request #24 from slawa85/feature/8374-global-roles-associated-permissions-become-invisible
Add changelog entry
Merge branch 'release/1.0' into dev
Bump version to 3.0.8

Due to our (new) convention plugins inherit their versions from the
OpenProject core. The next stable release of the OpenProject core is
3.0.8.
Merge branch 'release/1.0' into release/3.0
Update dependencies due to new versioning convention
Merge branch 'release/3.0' into dev
Bump version to corresponding core version