* Init `\health` rpc endpoint
* remove additional info from `\health` rpc endpoint
* Cleanup imports
* Added time threshold for health check
* Update rpc doc
* Remove unnecessary checks for blocktime creation lag
* Clean up of unnecessary config usage
config: test the default file
docs: spiff up config
config: minor fixes & comments
config: simplify test
config; use a seperate config directory, #556
config: update docs & parameterize file paths
config: PR comments
config: use the default object
fix a rebase error