Pass BUILDNAME and SITE options along to CTest/CDash

By passing these options through ./configure, one can use dunecontrol
to build a complete stack and still get a customized description in
CDash (such as when building in a cluster or VM where the actual machine
name does not matter, or when you want to add key options to the name
shown) without having to run a second configuration just to set those
in the cache.

Also fixes a bug where --with-cmake would skip any further option
specified after it.
Merge pull request #59 from bska/059_cmake

Synchronise build system with opm-core
Allow static linking for SuiteSparse to be forced

If -DSUITESPARSE_USE_STATIC=ON, then the build system will only look for
static versions of the libraries that are part of SuiteSparse, even if
dynamic/shared versions are present on the system. Thus, the default of
preferring dynamic libraries can be overridden.

SuiteSparse is rarely built ourselves, but still uncommon enough to not
be present on computing clusters.

This patch allows us to install the libraries on a workstation, for
instance from package suitesparse-devel and link to it statically
without having to maintain our own build tree.
Merge branch '060_cmake'