of the user_age_and_gender() method.
Changed options.web_inactivity_timeout to just options.web_inactivity to be
more consistent with the existing modopts.ini [web] option naming.

(default: 'browsing' - to match web UI verbiage).

Provide better example of constructing/using User objects.

numbers beginning w/0 are interpretted as octal by parseInt() by default.

0-byte .msg files are normal and do not mean a msg is waiting for the user.

Added properties to web_user object: do_not_disturb and msg_waiting

derived from a portion of ecwebv4's ndoelist.js.
TODO (echicken, help!): fill-out the 'action' property from the web session and
double-check on the logontime value (can we get this from the session blob?).

Migrated mostly from exec/nodelist.js, some from fingerservice.js.