* stable-2.12
  (no changes)

* stable-2.11
  Force developer mode if haskell tests are enabled
  Use the FD_DEFAULT constant
  Run the EPO tests with watcher turned off
  Add a 'with' context for running tests with paused watcher

* stable-2.10
  Add a target to inspect make variables
  Have fatal warnings on in developer mode
  Add a flag --developer-mode
  Fix check for sphinx-build from python2-sphinx
  use the Python interpreter from env

Signed-off-by: Klaus Aehlig <aehlig@google.com>
Reviewed-by: Petr Pudlak <pudlak@google.com>