Checkbx enhancement for better usability..

[alan-K-R]

When you use "selectable-rows" with pagination, the header checkbox is set to true on all pages, trying to find a way to clear this on next page..

Using $('th md-checkbox').removeClass('md-checked'); on pagination event call but will not work properly:(

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This change is 

[alan-K-R]

This is an issue i faced while using pagination and checkboxes,

1. if you increase pagination with some rows selected, you loose selected rows, will call the checkbox management provider created to deal with this if this code passes your wise reviewers..