* use <copyPaste.canCopyProperty> event to copy category value when copying group
* add camunda-bpmn-moddle for integration tests
BREAKING CHANGES
* CopyPaste: remove <property.clone>, add <moddleCopy.canCopyProperties>, <moddleCopy.canCopyProperty>, <moddleCopy.canSetCopiedProperty>
* BpmnRules: removed <elements.paste> rule in favor of <elements.create> rule
* BpmnRules: removed <element.paste> rule
* ElementFactory: use <attrs.di> property instead of <attrs.colors> for fill and stroke when creating element through ElementFactory#createBpmnElement
* use ES6 import / export
* UTILS: export individual utilities
* TESTS: localize TestHelper includes
BREAKING CHANGE:
* all utilities export independent functions
* library sources got ported to ES6. You must now use
a ES module bundler such as Browserify + babelify or
Webpack to consume this library (or parts of it).
* use bpmnFactory for cloning to ensure all relevant
elements have actual IDs
* don't copy dataAssociations, as they are visual elements
that will be created during element re-connection
NOTE: This fixes data input association not properly being
wired during target replace, too.
Closes#694, #693
This introduces a 'property.clone' event that allows
plugging into the cloning mechanism when cloning
nested extension elements.
Related to camunda/camunda-bpmn-moddle#35