Seems to produce fat JARs with the same MD5 after repeated runs of:
mvn clean package
Needs testing on other platforms, hence this commit.
Also trimmed some unneeded included JAR libraries from pom.xml,
e.g. netty, async-http-client,
and the *.js.map files from Swagger-UI, which seems to reduce
output JAR size from about 51MB to about 44MB.
DB shape change from v29 to add peer info.
New NetworkRepository to handle above.
Peer handshaking with v2 anti-DoS PoW code.
Handshaking refactored into a state-machine-like enum.
Some peer-related API calls added.
Peers exchange pings, heights, peers.
No actual peer sync yet.
Other changes:
Peer version info taken from Maven build properties/resource file.
AnnotationPostProcessor more resilient when fetching PathItems.
Per-repository session debugging flag that can be toggled at will.
HSQLDBRepository.delete() now returns int so callers can detect
whether anything was actually deleted.
Some renaming to settings.
