bin/pynag livestatus fixes

Make sure GET <table> is always the first argument
Parser updates

Livestatus get_* methods now all dynamic kwargs

If nagios.cfg is not found, then throw a more helpful error
Merge branch 'master' of github.com:pynag/pynag
Better error handling on livestatus
Merge branch 'master' of github.com:pynag/pynag
test.py now imports more unit tests
try skipping chdir in utilstest