rearrange for clarity
slight change in language
Allow unauthenticated access over HTTP to all resources, optionally (fixes #1594).
superficial changes to dominates()
all path services can have a visitor now
Fix #1598.
update keystore location.

no need for a subdirectory since this is the only file in it
add a few comments
toggle long distance mode in visualizer
Allow loading graphs from POSTed zipfiles. Fixes #1592.
oops, the main part of 8488c3b07e86ff84d7c3bab0f8eeb1133dc9a670
don't assume long distance mode.