Hi,

Two items for people using the develop branch:

* obworker is now called obelisk_server

* The stealth database has changed slightly. There are 2 upgrade options:
1. Create a new database using 'sx initchain' and just copy the
stealth.db file over your old one. You will lose any old stealth entries.
2. Stop your blockchain, and request an up to date version from me.
Don't restart your blockchain until you've replaced the stealth.db file.
This will preserve stealth entries and fully migrate you.

The format to the DB is simply to index stealth every block (before was
every 100 blocks).