Signals not forwarded to foreground commands

[chrisfarms]

Steps to reproduce

Start a conduit to a shell/repl type command:

cf conduit mything -- psql

Send ctrl+c.

Expected behaviour

psql handles the ctrl+c as it sees fit ... in this case "clear the current input"

Observed behaviour

Get booted out of the psql session and the conduit closes.

Potential fix

When running a foreground command, signals should be forwarded to the child command.

[bandesz]

This is now solved with the latest release (0.0.4)