Merge branch 'sp_sandbox'
Merge https://github.com/Theano/Theano
Fix words tacked on the end of a sentence.
Fix use of wrong macro.
Add first version of MRG for gpuarray (with tests).
Change GPUA_mrg over to use GpuKernelBase.  (I couldn't get it to work otherwise).
Remove useless import of NVCC_compiler
Added usecases for scan tutorial
Merge branch 'master' of git://github.com/Theano/Theano into scan
Merge git://github.com/Theano/Theano
initial commit for fast DotModulo
fix overflow bug in matVecModM
faster dotmodulo
Merge branch 'master' of git://github.com/Theano/Theano into scan
Adding test for scan and comments in the doc.
Merge branch 'master' of git://github.com/Theano/Theano into scan
Correction of the tutorial code.
Correction of the tutorial.
Copy files from the cuda to the gpuarray folder
Modify parent class of GpuImages2Neibs