Fix style of tertiary buttons in RTL Classic theme

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5511 2fea6a4d-a838-0410-917b-93a53c48e9d2
Fix style of tertiary buttons in RTL Hive theme

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5512 2fea6a4d-a838-0410-917b-93a53c48e9d2
Merge remote-tracking branch 'upstream/master'