A whole lot of work toward refactoring the Status and Job class variants.

[kyleoliveira]

• Refactors the existing Status classes to reflect our recent changes to the system.
• Removes old Job implementations in preparation for revisions.
• Tidies up the Rhizome-related module libraries and adds special Error classes.
• Refactors the various Equipment/Thermostat/RIMS model's Sprout-related methods into respective library models.
• Adds a basic Task class and variants. Task has an internal state machine that specifies which states and transitions the Task may do when in any particular state.
• Associates each Status instance with the Task identified by by the 'Current Task' from the Rhizome.
• Reimplements the Ping job so it simply takes a the Rhizome to ping.
• Adds a TaskJob that handles processing a Task through its various transitions and states.
• Adds a first whack at TurnOnTask and TurnOffTask. Pretty much works, but might need more testing.
• Tidies up a bunch of assorted junk that was in the lib folder.
• Updates the Procfile so we can run jobs on Heroku.

HOT DAMN.

@Ohmbrewer/web-team Take a look.

[kyleoliveira]

Notes:

• Should resolve #42 and get us closer to #41 , though I'd like to get this into master before doing anything more toward the latter since it's so damn big.
• If you're not sure what's going on with the Task stuff, check out the UML and State diagrams in the Design Diagrams folder and ask me any questions you have afterward.
• This'll run on Heroku, if you're into that sort of thing.
• You'll need to have a jobs worker for the job stuff. Locally, that can be done by opening a separate terminal in the project root and running:

rake jobs:work

• There are no views for Task stuff yet, so that's all through the rails console for now.

[kyleoliveira]

Seeing no comments/complaints, I'ma gonna merge dis.