Update html5shiv to v3.6.2 final

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5374 2fea6a4d-a838-0410-917b-93a53c48e9d2
Neutralise colour scheme on default front-side theme, plus a couple of cosmetic tweaks

Nobody wants yellow :(

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5375 2fea6a4d-a838-0410-917b-93a53c48e9d2
Google Font API has changed slightly, fix older syntax

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5376 2fea6a4d-a838-0410-917b-93a53c48e9d2
Simplifications for forms/buttons CSS

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5377 2fea6a4d-a838-0410-917b-93a53c48e9d2
Happy New Year 2013

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5378 2fea6a4d-a838-0410-917b-93a53c48e9d2
Use our tap-highlight colour for buttons/form elements too on public theme

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5379 2fea6a4d-a838-0410-917b-93a53c48e9d2
Match progressbar to subtler grad we have now

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5380 2fea6a4d-a838-0410-917b-93a53c48e9d2
Provide an alternative progress bar colour option for themers that don't want yellow

They can override jQuery UI's default image within their own theme if they wish

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5381 2fea6a4d-a838-0410-917b-93a53c48e9d2
Merge remote-tracking branch 'upstream/master'