Merge pull request #1 from eheien/master

CMake LAPACK/FortranC
Merge pull request #2 from eheien/master

CTest initial framework, compiler flags
Merge pull request #3 from eheien/master

Add CMake check for proj.4 and cencallvm libraries
Merge branch 'master' of https://github.com/eheien/sw4
Re-enabled the error log file for twilight testing and saved some result files for some cases
Add tolerance checks for twilight tests