Squashed 'cmake/Modules/' changes from 711d603..efcb171

efcb171 adding feature for the exports
8d0f119 Merge commit 'db3deb7f08efc91fc945746c91a29970cb99cad2'
ee61348 Modified packages for less verbose and no update when disconnected
8cc2821 Modification of the test treatement to allow multiple package for a given test + adding the tag UNSTABLE to register_test
6eed50f change cmake to have to configure only once to activate dependencies and ALL_TESTS
917b5fa corrections to make Akantu compile with PETSc activated
f85eedb Merge branch 'master' of lsmssrv1.epfl.ch:akantu
514ea02 cmake updated to compile with PETSc activated correctly
b78b109 Bug fix in the package system for boost components
44ba493 find package for scalapack extracted from mumps
a8e809b Cleaning some leftovers in cmake
b1d2fec Minor modifs to make akantu compile again with icc... + some styling
b1034b7 Modification sof the package system for third-party + making functions more clear
8bcc401 Merge branch 'master' of lsmssrv1.epfl.ch:akantu
c589335 Modified generation of package libraries to correct problem with CGAL (cf Nicolas)
00c8c41 Merge branch 'master' of lsmssrv.epfl.ch:akantu
270a289 Boost handled correctly
24cca56 CMake fixes

git-subtree-dir: cmake/Modules
git-subtree-split: efcb171e71b83668e7d380a8563ec2f9ecc1eca3