Provide a class with static methods for adding metrics

[stuart-warren]

Should be cross platform
Work like the MDC, persists until you clear it.
http://svn.apache.org/viewvc/logging/log4j/trunk/src/main/java/org/apache/log4j/MDC.java?view=markup
Use Enums(?) for field names for more control/better visibility (javadocs)?

[stuart-warren]

see #11 and #10

[stuart-warren]

related to #18
Provide an easier way to add metrics
Use yammer metrics
http://metrics.codahale.com/manual/

[stuart-warren]

Leave MDC details in MDC object
Create top level fields for objects created using this

[stuart-warren]

Maybe create a JUL logger to send Yammer metric based logs (on a schedule?) to the same details as specified in the appender?

[stuart-warren]

Should now be able to add a custom metrics based field class :)