also show group theme management on front page.
improve menu wording.
Fix deprecation warning
fix upgrade.
standalone upgrade url.
remove error log.
dont use site microtheme since its not allowed for now.
add a link to selected theme.
set owner guid for thumbnails.
Merge branch 'master' of gitorious.org:lorea/microthemes
Removed deprecated functions use.
Bumped version 1.8.0
Merge branch 'release/1.8.0'