use correct js function to remove issuetype scheme (fixes issue #1835)
don't fail completely when invalid links exists (fixes issue #1846)
restore "last edited here" lefthand block (fixes issue #1832)
clear username when soft-deleting user, so new users can be created with the same username (fixes issue #1879)
properly save searches for users (fixes issue #1882)
allow searching the wiki also when no projects exists (fixes issue #1955)
Merge branch 'branch-32' of github.com:thebuggenie/thebuggenie into branch-32

# By Daniel André Eikeland
# Via Daniel André Eikeland
* 'branch-32' of github.com:thebuggenie/thebuggenie:
  allow searching the wiki also when no projects exists (fixes issue #1955)
  properly save searches for users (fixes issue #1882)
  clear username when soft-deleting user, so new users can be created with the same username (fixes issue #1879)
  restore "last edited here" lefthand block (fixes issue #1832)
  don't fail completely when invalid links exists (fixes issue #1846)
  use correct js function to remove issuetype scheme (fixes issue #1835)