Fixes for trigger issues on value change

[aruncsengr]

Hi,

I would like to contribute my work to the project with some fixes for the following issues by this branch.,

1. Triggering change event when the input field value gets changed (solution for the opened issue - change input value won't trigger change #284)

2. Custom trigger 'change' call on user's change callback

<script>
    $('.dial')
        .val(27)
        .trigger('change');
</script>

Hope the fixes would be helpful for you to fix and close certain opened issues ;)

Thanks!

[josenicomaia]

+1