bump version to 3.1.10-pre
Fix issue with line height calculation when using older versions of jQuery
update changelog
Normalise offsetX and offsetY on the event

According to the W3C Working Draft, offsetX and offsetY should be
relative to the padding edge of the target element. The only browser
using this convention is IE. Webkit uses the border edge, Opera uses the
content edge, and FireFox does not support the properties.

Normalizing to the border edge is easiest to do.
Merge remote-tracking branch 'chriscbrock/add-offset' into 3.1.x

* chriscbrock/add-offset:
  Normalise offsetX and offsetY on the event
make a setting for normalizing the offset and check that getBoundingClientRect function exists before trying to call it
clean up data when tearing down
update changlog
add minified source
only jshint against src file
version 3.1.10
did it again...
bump to 3.1.11 so all the package managers are on the same version
Include LICENSE.txt in Bower

Fixes #110
Merge pull request #112 from scottgonzalez/bower-license

Include LICENSE.txt in Bower
bump version to 3.1.12-pre
Use the font-size of the element if the font-size of the parent is 0 and use 16 if both are 0 (applies when deltaMode is 1).
bump the version to 3.1.12
pull in grunt-bump to better deal with all the version references
need to have version in one spot in this file to support the new bump task