false-pool (and others)

finally, I've added up AR-Bogacs and did some cleanup ... seems "ready" for some feedback from you guys.

as noted on the updated **config.yml** template, it will only get setup with JNDI when configured e.g. : 
```yaml
  :adapter: mysql
  :jndi: 'killbill/osgi/jdbc'
  :pool: false # causes to replace AR's built-in pool
```

if this happens to look fine, I once again would like to consider avoiding some of the `pool.remove` "hacks"

also, I tried running against MySQL as SQLite was simply dying on me ( I was only able to get it work cleanly with latest 3.8 which I only happened to release yesterday :) ... probably cause I'm on a different OS. anyways should be useful as/if more tests are added which reproduce DB specific issues.