Added Ability to Create Multiple Feeds for Nested, Rich SF Relationships

* Added: use of sandbox constant
* Fixed: whitespace consistency
* Fixed: lots of logging updates for verbosity
* Fixed: do not take any create action on inactive feeds
* Fixed: ability to sort the order of feeds list
* Fixed: feed select boxes are all sorted alphabetically now
* Fixed: feeds primary key can now be used to update previous records
properly. For example, formA two SF tables worth of data -- contact &
address.
    You can create an address feed and a contact feed. If the address
feed is ordered before the contact feed in the feed list, you can use
the
    contact feeds primary key to map to the address primary key. This
is helpful to map true relationships is SF.
* Fixed: any feed can map foreign keys to primary keys, thus mapping
rich relationship in SF. For example, formB has five dependent SF
tables worth of data --
    contact, opportunities, opportunity contacts, contact, tribute. Now
you can create a contact, have it linked to opportunities. But also
create a second contact
    and map that as well as the opportunity to a custom tribute table.
Very fancy.