Clean up logging

[shroffk]

Use of global logger should be replaced by names logger.

[willrogers]

The global logger seems to be used for a 'context logger' in certain places, whereas other classes have their own private loggers. I'm not really sure how useful this is, but it does appear to be deliberate. CARepeater has both logger and logger2.

It would be very easy to replace all of these with a per-class logger. That seems fairly standard elsewhere. Otherwise we could keep the 'context logger' in Context.java and make it available everywhere with a static method.

[shroffk]

Otherwise we could keep the 'context logger' in Context.java and make it available everywhere with a static method

I was thinking of the same thing