MPL: Add "six" among runtime dependencies
Define GLX_GLEXT_LEGACY to fix issue #570.
golang: be more minimalistic and don't install vet and doc
Merge pull request #581 from jcftang/wip-update-golang

golang: be more minimalistic and don't install vet and doc
ca-bundle: install a generated ca-cert bundle for curl

On OSX git calls curl from hashstack, it will fail on https based
repositories if SSL verification is left to the default value of
true.

This commit pulls in a generated ca cert bundle generated from with
the mk-ca-bundle.pl that ships with curl.

It is probably better to ship a semi-regularly updated ca-bundle
than to tell users to turn off verification that verification of
ssl based services are broken.

Signed-off-by: Jimmy Tang <jcftang@gmail.com>
curl: make ca-bundle optional
golang: Add example which uses curl + ca-bundle

git/mercurial complains about not being able to verify ssl certs. This
example demonstrates how to squash this error with the shipped ca
cert bundle.
ca-bundle/curl: be clearer with why you would want ca-bundle
curl: use keyword parameter to enable ca-bundle
curl: remove un-needed parameter
Add option to turn on/off TK when building vtk (fixes issue #560).
curl: note that curl does not use a CRL out of the box in our case.
Merge pull request #579 from jcftang/wip-ca-bundle

ca-bundle: install a generated ca-cert bundle for curl
Merge pull request #568 from hashdist/mpl_six

MPL: Add "six" among runtime dependencies
Don't set LDFLAGS in scipy if we can help it

LDFLAGS overrides the default settings in numpy.distutils, which breaks
the OS X build in non-trivial ways.
Merge pull request #586 from hashdist/ahmadia/fix_scipy_osx

Don't set LDFLAGS in scipy if we can help it
Add line_profiler
Merge pull request #588 from hashdist/line_profiler

Add line_profiler
- Add swig to build dependencies
- Update to latest master
- Mark it as non-relocatable by default
- Add extra cmake flags to configure stage
- Add tk to build dependencies when vtk_use_tk is enabled
- Set vtk_use_tk to false by default
- Use update mode when enabling/disabling tk