0.7.0

• Feature #27 Modals can now be closed by pressing the
  escape key.
• Feature #27 Modals can now be closed by clicking outside of an open modal.
• Feature #27 When a modal is opening the is-clipped class is applied to the body element.
• Feature Added a new findElement helper method to the BulmaJS core. This method will allow plugins to easily normalise an arugment that needs to be either an HTMLElement or a query selector string.
• Feature #27 Rewrite the modal plugin, providing a new functionality, options and a full Javascript API.
• Feature #50 Allow multiple plugins to be attached to a single class.
• Feature #39 Implement a uniformed plugin interface
• Feature #40 Add the ability for the navbar to be sticky at a certain threshold. Also add the ability for the navbar to hide on scroll down and reappear on scroll up. Thanks to rdhar for the suggestion!
• Tweak #51 Thanks to apecell the file plugin now supports drag and drop.
• Bug #27 closeButton event is now correctly removed when destroying a modal.
• Bug #53 The tabs plugin now ensures it only grabs the ul/li element that is a direct child of the tabs-content element.
• Bug #54 Fix an issue where plugins were sometimes attached twice.