NetDB: Increase lookup throttle time
javadoc typo
show infohash in upper case
HTTP Proxy: Fix parsing of ECDSA address helper,
ignore '=' when comparing, reindent test
add new, stronger certificate for netdb.i2p2.no

The old certificate will not be replaced on the server yet.  The old cert is
SHA/1024-bit. New cert is SHA256/2048-bit key.