Fix ORCID validator
*8980* fix generation of ul.interests in ojs register page only when it will have contents  ##eirikhanssen/validation-2_4_5##
*8948* Fixed broken email links for emails sent by task sheduler
Merge pull request #204 from eirikhanssen/validation-2_4_5

*8980* fix validation (conditional generation of ul.interests in ojs register page)
Merge branch 'ojs-stable-2_4_5' of https://github.com/pkp/pkp-lib into HEAD