for config.get callbacks, pass closures

* instead of references to functions. Resolves Issue #784
* update tests to go with watch updates
cleanup duplicated loading log messages

* outbound: removed unused ‘var server’
* updated 3 more callbacks to be closures
* removed 12 loginfo(‘loading….’) from plugins
Merge pull request #788 from msimerson/fs-watch-cb

for config.get callbacks, pass closures