Glob filters as cli args

[aleclarson]

bic -- src/* test/*

The example above would force the crawler to only check src/* and test/* for changes. Only file paths that match src/* or test/* will be updated in the .bic_cache. All other paths remain the same, since their staleness wasn't checked.

[aleclarson]

Or maybe -- would be better for forwarding args to the build script.

So I will probably go with -g instead. And -x for excluded globs.