Remove Chrome Frame support

Since it is discontinued since June 2013
http://blog.chromium.org/2013/06/retiring-chrome-frame.html
Definining function calc-percent()

It was not defined.
Fixed spelling error in comments

No biggie. Just took me a second to figure out what "bting" meant!
changed it to an md so that we can read it
spacing out password fields
compiled css
cleaning up change log
Merge pull request #643 from chrisbalt/patch-3

Fixed spelling error in single.php comments
Merge pull request #639 from joseluis/patch-6

Definining function calc-percent()
Merge pull request #637 from joseluis/patch-3

Remove Chrome Frame support
changelog