AT:
Changes for camunda.org (http://www.camunda.org/download/modeler.html):

• include kepler update site on camunda.org donwload page
• include a note for Mac OS, that modeler is only working on indigo (include link to swt bug)
• change prepacked distro to kelper

Changes for docs.camunda.org (http://docs.camunda.org/latest/guides/installation-guide/camunda-modeler/#installation-requirements)

• include kepler in installation guide