Include addnodes for seednodes in config
Since the DNS/seednodes moved off Digital Ocean servers and changed URLs any new installations of v0.13.4.0 have stuck at the sync because they can't find any peers. For some reason the patch_v0.13.4.1 branch which updated the seednode URLs in chainparams.cpp doesn't work (well) for winbloze and Mac.
The workaround for all new v0.13.4.0 users is to put addnode directives in crown.conf for the seednodes. winbloze and Mac users will have to do so manually, linux wallet/node users can use the updated installation script to generate a config with the addnode directives.
Only 3 of the 6 planned seednodes are currently active, so the update includes only those.
Using the updated script for a new v0.13.4.0 installation on linux64, syncing started within a few seconds of starting the daemon and had 15 peers within 5 minutes.