WIKI-600 Invalid percent escape for page with national name
Problem Analysis:
  - PortalRequestContext.sendRedirect is using charset iso-8859-1 to encode URL.This encoding causes the webserver not understand url properly when the url containing special characters such as é, à, ç in French, or Vietnamese characters, or Japanese ones
  - When going draft page list, if target page of draft page was deleted, then exception happens due to parent of target page not found
Solution:
  - Encoding property pageid before redirecting
  - if target page not found, remove it
WIKI-325 search spaces by filtering user, appId=wiki, and space name pattern
WIKI-390 init autosave event in Richtext mode
Merge commit 'ff6f7c11076bdc96864734af3ed6f145eb68b8df' into HEAD