Exported QTI Item Packages are now valid against IMS QTI Validator 2.1
ASI.
Merge pull request #5 from oat-sa/ims-21-asi-manifest

Exported QTI Item Packages are now valid against IMS QTI Validator 2.1
Removed deprecated TAO_BASEWWW constant
Removed deprecated reference
added "Qti Hooks"
fixed mistyped character + changed Exception class
integrate Config object in QtiCreator::index()
hooks in place
hook management and interaction toolbar refactoring
dynamically register new custom interaction requirejs paths
use ciRegistry to manage customInteraction hooks
allow interactions icon as images
added interaction sidebar scss
removed unused element in widgets/Img/Active and changed config.dom to function calls
fixed global var conflict in interactionToolbar.js and modified required property of authoring data "title" to "label"
added remove()
fixed pci sample xml
Merge branch 'custom-interaction' of git://github.com/oat-sa/extension-tao-itemqti into custom-interaction