Add onSetPosition callback

Consider adding a callback for setPosition.  I've used this to move buttons and dots based on slide contents/heights.
added condition for loading jQuery in Browserify
Forgot to export in CommonJS init
Progressive Lazy Load option fix for 404 requests

Currently if a image 404's or has any other error then the .load callback is never called, which means the recursive function stops right there. This proposed change is to handle any image error and continue loading additional images.
Re-minifying
Fixing focusOnSelect mode when using nested DOM for slider thumbnails.
Fixing draggable bug
Merge pull request #533 from mikedamage/master

Add support for Browserify
Merge pull request #545 from fubhy/master

Fixing focusOnSelect mode when using nested DOM for slider thumbnails.
Merge pull request #540 from Kadajski/patch-1

Progressive Lazy Load option fix for 404 requests
Fixing clone indexes via @btpoe
Lazy load less than slidesToShow
Minifying PR's
Update README.markdown
Update index.html
Adding adaptive height, cleaning up docs
Fixing focusOnSelect
Tons of fun

- Added swipeToSlide
- Cleaned up asNavFor
- Removed date on lazy loaded images
- Version bump to 1.3.8
- Fixed slides < slidesToShow error
- Fixed uneven sets error
Minification
Adding variable width

Enjoy