OUWiki: Group mode warnings use print_error() incorrectly #8802
OUWiki: editing locked until end edit date added #8880
OUWIKI ensure images in intro field render correctly ISSUE30 #9188
Various: Google Docs portfolio export fails with DB error #9487
OUWiki: Attachments should be included in templates #8768
OUWiki: Copy pages from one wiki to another #8778
Post merge fixup: Replace deprecated check_browser_version.

Needed to be replaced by core_useragent::check_browser_version. This was
giving a warning on every page, because of the occurrence in theme, but
I decided to fix it everywhere.
Fixed get context deprecated functions everywhere after 2.6 merge #9632