Changes mouse motion measurements to use euclidean (instead of rectilinear) distance

Fixes briancherne/jquery-hoverIntent#13.
updates documentation and adds caveat
(super-minor, not-really-necessary markup & js cleanup :)
Reference jQuery consistently within library

This fixes an issue where after a jQuery.noConflict(), jQuery would refer to the wrong thing.
Add bower.json
Merge pull request #14 from usmonster/patch-1

Updates mouse motion measurement logic to use straight-line distance
Merge pull request #15 from rowofpixels/master

Reference jQuery consistently within library
Updated release number for recently merged code.
Merge pull request #22 from pburtchaell/master

Add first draft of bower.json
Updated bower.json based on comments from Pull Request #22
Removed U+FEFF character (zero-width no-break space) from beginning of file
Changed to symantic versioning (from r8 to v1.8.0)
Merge remote-tracking branch 'upstream/master'

Conflicts:
	jquery.hoverIntent.js