adding metrics plugin with default no-op logger plugin.
add metrics decorator utilities to count success/failure and timers
decorate various plugin functions to allow metrics collection
add entry_point registration
fix syntax
setup default "metrics" plugin for each environment
fix bogus attribute name
fix metrics plugin default per environment
try again on metrics decorators
fix syntax
need context object to find the metrics object when wrapping aws objects
stupid "local variable referenced before assignment" error
another tweak metrics plugin, make it work
make metrics logger just log to debug
Merge pull request #188 from coryb/metrics

add metrics plugin