A few minor fixups...

1) A few fixups/improvements to cmdline usage output
2) increase default io timeout
3) remove pointless dequeue branches in idle state

Change-Id: Ic9bb89c671541c617bd855b5d76493e407d5c330
Bump version to 0.0.5, add NEWS file

Change-Id: Iea053afb72257c1c9c23951e2563c01a30fb481c