Merge pull request #16 from seanclerkin/master

Change to precompiled Ruby binaries for speed
Merge pull request #17 from seanclerkin/master

Add missing binary flag
added ability to have 'vanilla' build
added ability to have 'vanilla' build
extra time for ruby install from binaries
Merge pull request #19 from cornelf/master

extra time for ruby install from binaries
Don't hide STDERR
Merge pull request #21 from dstockton/master

Don't hide STDERR