Merge pull request #18 from norrislee/master

fix animal pen join query
Add hella periods
Removed an S
moved constants
Depluralized, moved constants again
BOZY BOZY
added pen_id check
Removed comments
pen_id -> id
Fixed add new pen
Quotes & periods in abundance
Changed variable names, added space
Added cash, changed some other stuff
zooname -> name
CASH: A NEW APPROACH
SEMI           COLON
" -> '
Added a '
fetched from result set
One last try at this