Add port config var for database connection

[sabregreen]

Add port as an explicit option for database connection, pulling from config

[comstud]

The goal was to match Golbat (tho it looks like I accidentally chose 'addr' instead of 'address'). Notice that in your PR you are basically just appending ":port" to Addr. This is how you do it in the config. :) Example:

addr = 'dbhostname:3306'

I think what's missing is just an update to the example config

[sabregreen]

Closing due to being unnecessary, ability already exists