updated installation instructions in README
fixed doc on ShockCapturing parameter
Merge branch 'master' of github.com:erdc-cm/proteus
updated cygwin config to  use the right path for  blas and lapack
configure now respect PROTEUS_ARCH env var
Merge pull request #36 from erdc-cm/generalize_configure

configure now respects PROTEUS_ARCH env var
Merge remote-tracking branch 'origin/master' into garnet_port
propagate PROTEUS_ARCH to configure