Moved text labels config to attributes and switched $watch to $on

[syabro]

1. All view stuff should be inside html. So I moved text to be configured as attributes in html, and not in controller. Also classes other config stuff should be refactored too

Now button looks like

<jp-ng-bs-animated-button
    button-default-text="Login"
    button-submitting-text="Loading..."
    button-success-text="Access granted"
    button-error-text="Access denied"></jp-ng-bs-animated-button>

1. Replaced $watch variables with more obvious events.

To control behavior we need to emit signal from scope:

$scope.$broadcast('submit-button-event', {
    submitting: true
});

First argument is object and could have 3 attributes to control status: submitting, success, error

[syabro]

1. Moved buttonDefaultText to element's innerHTML Now it should be used

<jp-ng-bs-animated-button
    button-submitting-text="Loading..."
    button-success-text="Access granted"
    button-error-text="Access denied">LOGIN</jp-ng-bs-animated-button>

[syabro]

If you ok with these big changes and remove js prefix I'll refactor all other stuff and update documents. If not I'll continue work on my fork ;)

[jeremypeters]

Great stuff, thanks syabro. Yep, if you could refactor the other stuff (inc. the prefix) and docs as well, that'd be awesome.

[EdgarOrtegaRamirez]

This is great, +1 to get this merged. I love the way to set texts using directive attributes rather than a js object.