Add in support for the qt package.
Add hyperdex.
Add python bindings for replicant.
qt now supports not setting arch or platform
Add Mercurial
Merge pull request #169 from hashdist/hg

Add Mercurial
petsc: upgrade to v3.4.4
petsc: remove zombie patch that has already been applied
Merge pull request #177 from jedbrown/jed/petsc-3.4.4

Jed/petsc 3.4.4
add mpi4py from March 2014
qt 4.8.5 doesn't support system freetype, only qt5 does
add examples of building qt on darwin and linux.
Add in a test to verify qt builds correctly.
namespace and fix qt test package
Allow people to set the address model and toolset to boost.
Add in a test for boost.
Add Linux Arch environment and host packages

* Revision of 5c238

Suggested-by: Jed Brown <jed@jedbrown.org>
Fix hyperdex python build.
Clean up dependencies.
Remove dot '.' from dependency.

This breaks because of https://github.com/hashdist/hashdist/issues/208