refactor dog model to delete unnecessary association
separate owner ui menus into new file
add method to show a park's details
add owner method to see a park's details
change conflicting method name
add checkout feature
create branchs to avoid duplicate checkins/false checkouts
refactor owner create method for default values
add scopes/feature for park attribute search
add scope/feature for dog attribute search
add before_save callback to standardize owner names
add before_save callback to standardize dog names