Update extending_theano tutorial
Fix uppercase for Op
Update doc
Fix gh-2210
Update extending_theano tutorial
Update extending_theano tutorial
Fix some typos and do some reformulations
Fix typos
Some reformulations
remove space
Merge pull request #2191 from ballasn/extendtheano

Update extending_theano tutorial
Fix Join.grad when all inputs/outputs dtype are ints.
Documentation : error messages
Use python instead of ipython
Don't override more informative error message.
More information in the error message.
Document theano.shard( broadcastable) parameter.
Better hint
Hide repo and update error message
Update sharedvalue.py

Typo + clarification