init v2.0.3
updated setup
updated READMEs
quiet_errors for scripts
custom exceptions and logging
cleanning...
apply D25
add requirements-dev.txt
more tooling
faster infogroup
nose tests
cleanning...
logging in dev
named loggers
better exception messages
updated data4mask & coverage.py in req-dev
test for ext.meta
fix regression error (oops)
module logger for core
access to log messages