[web] Set response status to 400 when appropriate in ajax controller
When this is clearly a client error, set status to 400. Otherwise, keep the
default value for RemoteCallFailed (status=500).
Tutorials
~~~~~~~~~
We present a few tutorials of different levels. The blog building
tutorial introduces one smoothly to the basic concepts.
Then there is a photo gallery construction tutorial which highlights
more advanced concepts such as unit tests, security settings,
migration scripts.
.. toctree::
:maxdepth: 1
base/index
advanced/index
tools/windmill.rst
textreports/index
dataimport/index