NodeSourcesLocationController — use HttpRequests
HttpRequests — add head request method
add note on alternative resolution to DumbService javadoc
autopopup completion in javadoc local reference (IDEA-131899)
add JDOMExternalizableStringListBinding — format is not backward compatible
disable obsolete incompatible 'Copy On Steroids' plugin
made public
Merge remote-tracking branch 'origin/master'
fixed test_helper.py template for creating course
Merge remote-tracking branch 'origin/master'