*8754* Avoid non existing articles
Merge pull request #189 from beghelli/8754-fix

8754 fix review reminder task
*8756* Fix affiliations in articles report
Add recaptcha support for Notification Mailing List

Conflicts:
	lib/pkp
Update lib/pkp submodule for latest RECAPTCHA for Notifications.
Merge pull request #190 from ulsdevteam/notification-recaptcha-2_4

*8757* Add RECAPTCHA to Notification subscription request
Merge pull request #192 from ulsdevteam/notification-recaptcha-2_4

*8757* Update lib/pkp submodule for latest RECAPTCHA for Notifications.
Copyright notice tweaks
OJS 2.4.4-1 final commits
Remove doxygen from build procedure
*8763* fix Postgres SQL for timed views upgrade
display object metadata on the article abstract page
*6625* the possibility to exclude the individual pub objects from assigning them a pub id
*6625* exclude issue articles