- extended math_libs.cmake for C headers detection - static_linking tests included - rearranged math-libs order for better libraries detection - no int64 for cc_lapack - added include/ directory to %path% to detect clapack.h in appveyor - simplified C-code, intendations kept - travis-ci kept simple, but needs liblapack-dev and libatlas-base-dev - libatlas-dev can not be installed due to repeating xerba objects in *.a lib files