modification
Merge branch 'master' into classes
force types
Merge branch 'master' into classes
oops
Merge branch 'master' into classes
reorder classes (Exceptions go first)
pep8 ftw!!!!!!!
Merge branch 'master' into classes
Merge branch 'master' into classes

Conflicts:
	check_iftraffic_nrpe.py
Merge branch 'master' into classes
Merge branch 'master' into classes
Merge branch 'classes'. Fixes #19