Fix a couple of memory leaks, I think.
It's possible for the receiver to support V.29 only (and not also V.27ter).
While it's not clear in what configurations we should be signaling metric preferences, we certainly shouldn't be indicating inch preferences if Class1Resolutions doesn't include the inch-based resolutions.
This differentiates between faxnumber and "fromfax" in the q-files.
sendJobDone deletes the req for us
suseconds_t tv.tv_usec needs to be cast to long to avoid a warning on systems where it is defined as long long.
Fail a job sooner if shared call failures cause it to reach maxdials.
spelling