python_numpy fix
Fixes io unitttests
gcc: ftemplate-depth to 1024 by default
clang: fix version detection
fix SCRIPTTESTFLAGS to allow multiple values
Merge remote-tracking branch 'origin/HEAD' into precompiled_header_proposal
Merge branch 'precompiled_header_proposal' of git://github.com/tuttleofx/sconsProject into precompiled_header_proposal