Added sleep if open fails for serial device path; noticed that
CPU was 100% if this wasn't there, and the device path doesn't
exist.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Added debugging messages around open of device file.
Merge branch 'master' of github.com:deverett/port_agent
Merge branch 'master' of github.com:deverett/port_agent
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Overrode publishing of heartbeat to instrument and command to driver.
Merge remote-tracking branch 'upstream/master'
Added detail to debug messages.
Changed assignment in conditional to test for equal.
Changed spelling in debug message just to see if I'm using the right port_agent.
Merge pull request #3 from deverett/master

Port Agent Fixes.