added ability to allow programmatic configuration of steps
some small refactoring of the configuration loading
Oops..forgot an unused variable
Changes to tooltip buttons

Support for alternative text for 'skip' button on last step, and
'disabling' of prev/next buttons on first/last step
Disable links when the introduction is in the first or end
Add minified version
Merge branch 'programmatic-config' of https://github.com/juristr/intro.js into juristr-programmatic-config
Fix bug in skip/exit button
change position to bottom
add minified version
Update the position of helper layer on window resize, related to #81
Add minified version
Fix syntax of IE 8 comment in example, which was being rendered on the page in some versions of FF for Mac OS X
Fix #108 - fix Firefox bug by focusing on "Next" button, so that hitting Enter moves you to the next step
Prevent IE from skipping steps on hitting Enter by preventing default behavior, which activates the "next" button a second time
Add exitOnEsc and exitOnOverlayClick options
Handle changing the exitOnOverlayClick option after calling start()
Add CSS fallback properties and remove introjs-ie.css file
Better prevent default on IE8 and 9.
Also disable when focused