A few bug fixes and minor changes to output and exit status#36

Merged

mgckind merged 8 commits intomgckind:masterfrom kadrlica:master

Nov 25, 2015

+54-39

Commits on Nov 22, 2015

Muted startup messages when 'quiet' requested; removed some vestigial calls to 'clear' in 'mytables' and 'myquota'
kadrlica
committed

Commits on Nov 23, 2015

Minor tweak to documentation
kadrlica
committed

Commits on Nov 25, 2015

Revert to 'os._exit(0)' call. Keep eyes open for issues.
kadrlica
committed