disable online updates (for now)

* due to upstream changes out of our control, the UA database is no
* longer free and updates will not work. we must fallback to the bundled
* db until a workaround can be found and/or compatibility with the
* commercial db can be implemented.
updated bundled database to 20141024-1
display a warning when trying to use online updates
bumped version to 0.6.2
updated release instructions