Fixed the requireJs problem accordingly with issue mendhak#71

Merge pull request mendhak#126 from millerscout/intro-js-to-2.5.0

update intro js to 2.50

Merge pull request mendhak#133 from millerscout/fix-undefined

Fix to Directives not being properly destroyed.

fixed a issue for those working with bower.json.

now i'm setting the main file as "build\angular-intro.min.js"

Merge pull request mendhak#124 from millerscout/fix_packageJson

fix the reference that is informed on package.json. thanks @k3v3v

- Version bump.

- fixed branches, i did a wrong rebase

version bump.

Merge pull request mendhak#113 from mendhak/auto-npm-publish

Automatic npm publish when a release is created

Merge pull request mendhak#112 from millerscout/ngIntroAsService-fixes

- removed triggers, as it's faster work with callbacks directly and give control to the developer that needs it.
- updated examples.
- added a directive to help disable buttons when needed.