add more logging lines this time in main thread
improve logging text slightly
logging around the header fetch call
do away with printing off a queue on main thread

For some reason the main thread seemed to hang and no longer accept
print tasks - possibly caught an exception I didn't notice.

In any case it seems to be okay just printing from the select threads.
fix bug when reading headers that span multiple lines
Merge branch 'master' of github.com:aliclark/mailtail