Defer to cmake to determine the correct build command.

Instead of presuming the build system is make when generating a cmake project
instead ask cmake to invoke the build system itself.
Patch bzip2 to defer to the system cc compiler.
Merge pull request #149 from robertmaynard/bzip2_clang

Patch bzip2 to defer to the system cc compiler.
Merge pull request #148 from robertmaynard/cmake_build

Defer to cmake to determine the correct build command.
Add in support for gdal.
Add in support for kml
Make sure we build kml in release mode.
Make sure we build in release mode with shared libraries.
Merge pull request #157 from robertmaynard/gdal_pkg

Add in support for gdal.
Merge pull request #158 from robertmaynard/kml_pkg

Add in support for kml
update ansible to 1.5.3 release
Merge pull request #160 from jcftang/wip-update-ansible

update ansible to 1.5.3 release
Add hyperdex.
Add python bindings for replicant.
Bump SLEPc to 3.4.3 and use configure stage from autotools_package instead of calling ./configure directly.
- Set CPPFLAGS and LDFLAGS for DOLFIN as in cmake_package.py.
- Help DOLFIN find the correct Python library.
- Help DOLFIN find the correct SuiteSparse libraries.
Merge pull request #161 from hashdist/johannr/slepc-fixes

SLEPc updates
Test package 3: Use binary MPICH
Test Packages 3 add host MPI parameters
Merge pull request #165 from hashdist/binary_mpi_travis

Test package 3: Use binary MPICH