Add string to ru_RU locale + fix typo in en_US
Merge pull request #191 from ppv1979/ojs-dev-2_4

Thanks, Pavel!
Fix ORCID validator
*8963* Revert HTTPS in ORCiD URLs
*8085* patch OJS for SPF-compatibility. c.f. http://pkp.sfu.ca/bugzilla/attachment.cgi?id=4028
*8085* allow for a default email sender to be forced in configuration multidomain-install DMARC compatibility option