updated style
fix in lib_tw, was catching the wrong type of error
adding some tests for lib_tw

ess.lib_tw is broken due to removing star imports

added command line arguments

 - python3 prints
 - settings.yml is optional
 - clarifying question

this commits also tests jira integration
Resolves BPWP-409

if you have templates head.tmp, queue.tmp in
running directory then these are used instead..