Add action_display_verb option for setting the text to use when submitting an action form.
Change send bulk message display verb to 'Send message'.
Change download survey data display verb to 'Send CSV via e-mail'.
Test send bulk message form submit button name.
Test surveys email user data submit button name.
Change value of action submit button to 'Apply'.
Merge branch 'feature/issue-716-option-to-change-text-on-save' into develop