msp: add proper rsp timeout callback.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
crt: change evtloop_iterate return val.

File descriptor counts ready aren't really the caller's business.
Might add exit/cont suggestions in future.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
crt: fix empty printf args for gcc-4.8

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>
crt: add log timestamp prefixes.

Signed-off-by: Daniel Stodden <daniel.stodden@gmail.com>