Added Field Worker Paths

BotThread.py now has a DwarvenFieldWorker and regular Field Worker path.
I now see the problem with the regular Field Worker paths in that there
is no way to them or back from them at night since all the gates are
closed.  Next up will be the sawmill operators and rancher paths.
Added rudimentary database search

- Added search functions to Area and MobLocation classes to give any
matches to a partial text string sent to them.
- Added a MudMap function to call the aforementioned functions and print
out results
Added find / showto / goto commands
- Find will use the previously added MudMap function to list areas and mobs whose names partially match a given string
- Showto will show the path to a given Area ID ex (where you are you can type showto 45 and it will give you a path to the chapel)
- Goto will walk your character to a given Area ID using the path see using Showto
- To accomodate these new commands there has been several changes to where the database connection is instantiated and setup rooting everything in los-helper and branching out from there