use build constraints
Use godeps to compile Forego
Add concurrency support

For #18
Remove concurrency flag from run command

Not currently supported.
Merge pull request #24 from jwilder/jw-concurrency

Add concurrency support
Merge pull request #21 from kirs/godeps-makefile

Use godeps to compile Forego
Merge pull request #15 from jweslley/build_constraints

use build constraints
Add restart option

If a child process dies, forego shuts down all processes.  The -r
option will restart the failed child process.