Multiple build environments

[itziakos]

This PRs adds support for multiple build environments. The test coverage changes are not expected to change since there are not many gui toolkit specific tests

[itziakos]

Added support for pillow/pil builds. There is a strange problem with nose and expectedFailure decorated methods. Need to investigate.

[itziakos]

This PR is ready for review.

[jwiggins]

I'm guessing this isn't needed any longer?

[jwiggins]

Any reason why the setup script can't be named with a leading .? That's how the install scripts were named before. I noticed several commits where you kinda bounced around trying to find something that Travis would accept.

Other than some pretty minor feedback, I'm 👍 on this. Hopefully this will be a bit more stable than the earlier accommodations made for PIL/pillow. Oh, and actually testing WX is a nice touch too 😉

[itziakos]

Any reason why the setup script can't be named with a leading .? That's how the install scripts were named before. I noticed several commits where you kinda bounced around trying to find something that Travis would accept.

it looked to me weird that the scripts where hidden, so I changed that.

[itziakos]

Other than some pretty minor feedback, I'm 👍 on this. Hopefully this will be a bit more stable than the earlier accommodations made for PIL/pillow. Oh, and actually testing WX is a nice touch too 😉

In general, I think it is a better build setup. Please note however that it does not look that we are testing much or WX or QT code of enable. We need to increase the test coverage.

[jwiggins]

WTF. pushd/popd doesn't work when you execute a script with sh? Perhaps /bin/sh is not bash on Travis?

[WarrenWeckesser]

Ubuntu uses dash for /bin/sh, and dash does not have pushd and popd.

[itziakos]

Ok, I reverted the change, it is not that bad to use cd

[jwiggins]

Thanks @itziakos!