Add ARM architecture check for Raspberry Pi
copied the old gpueye code and test.
First version of GpuEye for cuda only.
Use the new interface.
Merge pull request #1590 from nouiz/gpua_eye

[MRG]Gpuarray eye
Make the op_lifter take a list and lift again the Sum op.

Add test for it.

Do not include now the Prod op as there is failing test.
Remove compilation warning.
Merge pull request #1612 from vdumoulin/master

Add ARM architecture check for Raspberry Pi
NumPy 1.8 changed a private interface, but the official interface output useless stuff to the user.

Try to use the old interface and silence part of the printed stuff.
Update NEWS_DEV.txt
pep8
update .mailmap
Add contributor list.
update .mailmap
Allow tests outside this repo to reuse our tester
Update NEWS_DEV.txt
Doc Anaconda Installer don't work anymore on windows.
remove lgpl code
Better error message.
Better error message