jhm: Add release build configuration
jhm: Remove outdated / old JHM config file
base/json: Match exactly what is asked for

Before we greedily matched anything which was not whitespace. So we'd read in commas after exact matches, for instance "true,".
jhm/config: Allow reading bools via Read()/TryRead()
TMP (untested): jhm: Build tests by default

NOTE: there is no way to currently run the tests.