i2ptunnel: Prep for keepalive

See merge request !166

Susimail: Add markdown js for plain text content

See merge request !161

Console: Fix iframe size issues

See merge request i2p-hackers/i2p.i2p!160

SSU2: Delay sending relay tag

See merge request !169

so we may begin to remove SSU1 code

Susimail: Speed up initial loading by 35x

See merge request !162

Console: News fetch improvements

See merge request !163

Tunnels: Peer selection adjustments

See merge request !167

Router: Enforce consistent max RI size

See merge request !168

missed lines in previous checkin

in prep for use by i2psnark, to follow
log tweak

clean up old header CSS

WIP, prep for enhancements to follow

and UIDL mismatches

WIP, prep for enhancements to follow

to alphabetize ties in console charts