Admintabs: Hide makedefault action in default category, refs #1149.
Merge pull request #1193 from phaidon/admintabs-hide-makedefault

Admintabs: Hide makedefault action in default category, refs #1149.
Admintabs-fix for Andreas08 and SeaBreeze themes, refs #1149.
Merge pull request #1194 from phaidon/admintabs-themes-fix

Admintabs-fix for Andreas08 and SeaBreeze themes, refs #1149.