Speed up matVecModM function.
Merge pull request #1759 from MarcCote/speedup_MRG_init

Speed up matVecModM function.
CRASH: Make sure we don't bust the threads.z 64 limites.
Make sure dtype is int64 as before and comment code that isn't used.
More info in error message.
Don't print waiting for the lock the first time.
CRASH FIX: same fix crash to the new gpu back-end
remove import not used.
Merge pull request #1761 from nouiz/mixed

Mixed
initial commit
changes to method param names. unit tests
subgrad doc
Merge branch 'master' of https://github.com/Theano/Theano
subgrad: remove print from unit test
Update the c_code_cache_version that was forgotten.
Merge pull request #1765 from nouiz/version

Update the c_code_cache_version that was forgotten.
Add tile in the doc.
Merge pull request #1766 from nouiz/doc

Add tile in the doc.
Add _tensor_variable.cumprod/cumsum() interface in the theano/tensor/var.py files, in
the _tensor_py_operators class
Update var.py