oAuth init error messages

Fix line plot error (see igvteam#715)

Fix line plot error (see igvteam#715)

remove unused code

catch error when removing provisioning URL (don't try to load "")

Correct readme and remove unused (and incorrect) hidpi scripts.

update server data

fix "exists" test

draw bedpe arcs between absolute center of features, don't round down…

… to an int

Increase max cigar length for popup info from 60 to 1000. See issue i…

…gvteam#667