Remove outdated icons from themes, to make future maintenance easier.
Fixed file names and updated 'missing' log, 'copyright' text and 'links' for themes- where needed.
(Checked against current 'images.zip' bundled themes and git history).

Change-Id: If97378582377a64ed798eb44596ac56b89e3eb12
Signed-off-by: Andrew <dent.ace@gmail.com>
Reviewed-on: https://gerrit.libreoffice.org/14583Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
Tested-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>