Fix problems with CDataType in DebugMode
More robust check in dimshuffle pattern
Fix tests in FAST_COMPILE
Use integer division for python 3 in test
Run one part on python 3.3, add FAST_COMPILE

- fix install of pydot by using the right version of pyparsing on python 2
- pydot does not run on python 3 for the moment
- run tests on the installed files, not the source
Merge pull request #2322 from lamblin/travis_py3

Run part of travis on Python 3
More gpu timming
fix test in floatX=float32
Fix test in DebugMode
pep8, duplicate var name fix.
Clean trailing whitespace
Fix description of cxx.
Add description of nvcc.fastmath.
Merge pull request #2315 from abergeron/fix_cdata_debug

Fix problems with CDataType in DebugMode
Add a link to the --use_fast_math flag documenation.
Merge pull request #2324 from nouiz/tests

Tests
Merge pull request #2325 from abergeron/doc

Document nvcc.fastmath and fix cxx description.