Remove outdated icons from themes, to bring inline with Galaxy.
Fixed file names where needed.
Update 'missing' log and 'links' for themes.

Change-Id: Ic4bbdf91c69e555919ea71c96c0155a7db8f0165
Signed-off-by: Andrew <dent.ace@gmail.com>
Reviewed-on: https://gerrit.libreoffice.org/14466Reviewed-by: Jan Holesovsky <kendy@collabora.com>
Tested-by: Jan Holesovsky <kendy@collabora.com>