Tracing: started integration with syslog
restored test_value_description_map
added json decoding helper functions from a file and a stream
Merge branch 'master' of github.com:datacratic/soa
use fieldName() not key for field names in JSON path
added test and reverted the 'revert incorrect change to structure description macro'

This reverts commit 754a7584d2df0e934b7ac2b785bf70bcfeac028a.
Unit tests for the tracing system
Storing syslog traces in a ring buffer
Merge branch 'master' into tracing-test

Conflicts:
	service/service.mk
Merge branch 'master' into endpoint-experiments