Move third-party TinyMCE out of soc/content/js and into the application image root, like other third-party code. Update the app.yaml.template to add /tiny_mce as a source of static content.

#!/bin/sh
NOSE_WITH_DOCTEST=t
export NOSE_WITH_DOCTEST
NOSE_DOCTEST_EXTENSION=txt
export NOSE_DOCTEST_EXTENSION
#NOSE_DETAILED_ERRORS=t
#export NOSE_DETAILED_ERRORS
nosetests $*