Test a new travis testing approach that uses miniconda to install dependencies as binary packages
Do not use -ffast-math for weave -- this does not work with anaconda apparently
Update the miniconda version
Add a new "include_dirs" preference for weave, needed when using anaconda which ships its own math.h
Create a preference file to make weave use anaconda's include directory
Re-add the '-ffast-math' option to weave's `extra_compile_args`.
Merge pull request #165 from brian-team/travis_binary_packages

Travis binary packages
Merge remote-tracking branch 'origin/master' into spikequeue_refactoring

Conflicts:
	.travis.yml