Support syntax checking

[michaelmior]

This is really cool! It would be helpful if there was a way to specify a command to check syntax that would run at build time. For example bash -n for bash. Could save a few cycles during development.

[synek317]

Wonderful idea! I'm already experimenting with this. I'm going to start with bash, python and perl. What other langauges could be easily checked?

[michaelmior]

Ruby has ruby -c and Javascript has node -c.