TODO:
 * fix map ui: scaled tween doesnt fully complete if user manually panned before changing locations
 * UI: add bgm+sfx on/off buttons, and persist their values
 * AI: dont buy when price is above median (advanced: find a place to sell before buying)
 * AI: consider trade stations for buy/sell actions too
 * fix AI: can get stuck with expensive goods and nowhere to sell-- then what? (cut losses and sell to station?)
 * UI: when hovering on factory name, mouse cursor = ?, if clicked open detail/info panel
 * graphics: posterboard cutout figures with dialog
 * graphics: ship and station images
 * fix: clean up divs left by modal dialogs closing
 * gameplay: add travel time between galaxy systems?
 * idea: inter-cluster worm holes as paid toll gates
 * idea: factions
 		- show faction zone indicators on map
 * idea: implement government taxing system (needs Factions code, and Calendar?)
 	- implement corporate tax discounts
 * improvement: implement name registry to ensure uniqueness (or just add a shit ton more names so collisions are statistically unlikely!)
 * improvement: give commodity descriptions, show tooltip when hovering?

NOTE: crammit -c crammit.yaml

8/16/2014
 * ui: click to move to undiscovered adjacent locations (show unknown but adjacent)
 * audio: sfx added - warp in, warp out, buy, sell
 * audio: background music
 * UI: when changing active agent, move location to that agent
 * AI: only sell at >= value
 * fix: FTUE step 2 triggered twice
 * fix: menuCreateVessel - vessel view missing agent name (shows up after refresh)

8/15/2014
 * fix: negative cargo qty

8/14/2014
 * AI: store value of commodities bought
 * ui: added buy/sell/trade cursor icons when hovering over factory/station goods

8/11/2014
 * THE REMAKING
 		- FTUE first corp, agent and vessel
 		- implement template-random universe generation
		- link randgen locations with stargates

8/10/2014
 * THE REMAKING
 		- freeze control of vessel for active agent, release on switch
 		- hud: agent list
		- menu create->vessel
		- refactor: removed agent credits, agents spend corp money instead
		- random name generation for ships and agents
	  - support for multiple user-owned ships
 		- player hud shows drop-down of user-agent selectable assets
 * fix: NUKE doesnt remove corporation from HUD

8/9/2014
 * THE REMAKING
  	- much refactoring
 		- implemented corporations (player, NPC)
		- menu create->agent

8/8/2014
 * map: hide undiscovered map nodes
 * track player's known locations
 * menu: create station
   -refactored StationModel to use StationType
 * menu: create -> factory
 * implemented FormDialog
   - support for text, strInput, intInput, labels, select

8/7/2014
 * menu: create -> destination
 * menu: create -> location
 * implemented TextAreaDialog (generic dialog with text area content) - for import/export
 * menu: import
 * menu: export
 * fixed graphic issues with map node scaling
 * fixed Nuke bug
 * refactor: implemented PlayerModel in anticipation of 'known universe' feature

8/6/2014
 * map: right click adjacent map nodes causes travel to
 * map: add icons to map nodes based on location contents
 * map: show connections between map nodes

8/5/2014
 * automatic periodic game_save -- basically, persistence
 * nuke game (has bug, but after refresh works) -- fixed 8/7

8/4/2014
 * design Q: how does 2d map interact with 'current location' of ships
 		- shows highlight of current 'active agent' location
 * ui: placed map view and location view side-by-side
 * optimize: refactored some main.js code
 * map: highlighting 'current' location

8/3/2014
 * utility: added 'export' to menu, can now get JSON of saved game into clipboard
 * optimize: make world_seed same format as serialized game, load from serialized world_seed
 * WIP: started system map (using mapview.html instead of index for experimental work)

8/2/2014
 * save/resume world state
 		- http://diveintohtml5.info/storage.html

7/31/2014
 * optimize: move main.js code into GalaxySim
 * implemented Service.get("galaxy") instead of window.galaxy
 * adding toJson functions in preperation of save/resume

7/30/2014
 * add 10% factory incentives for inputs with zero Qty
 * fix: trade prices need to be fixed at CommodityType.getAvgTradeValue()
 * optimize: convert to dictionary for FactoryType/FactoryModel input/output(+storage)

7/29/2014
 * implement TradeDialog to buy/sell from stations

7/28/2014
 * implement StationModel (todo: periodic consume)
 * implement StationView

7/27/2014
 * ui refinements to use less space
 * optimize: have view classes inherit from common base class for getDiv and setTarget
 * add PlayerHud ui
 	- ui: show player balance
 * add MenuView
  - moved pause functionality to menu (removed hack button)
 * optimize: remove unnecessary calls to jQuery

7/26/2014
 * fix: remove cmdy with qty 0 from vesselModel._cargo
 * fix: int qty values becoming corrupted over time
 * implement user-controlled agent/vessel
 * merge SellDialog into PurchaseDialog, only need one class

7/25/2014
 * implement UI to buy/sell/move

7/23/2014
 * fixed: views not updating correctly when vessels moved location

7/22/2014
 * implement agent travel between locations
 * implement agents to buy/sell
 - implement commodity-specific reseller AIs
 * in progress: agent buy/sell logic

7/21/2014
 * implement vessel view
 * implemented world_seed.json to load initial world from
 * implemented stargates for vessels to travel between locations
 * implemented UI for switching between locations

7/20/2014
 * implemented locations
 * implemented location view class

7/19/2014
 * factory UI animated, simulation pumping factory queues
 - using hacked code to distribute outputs to other factory inputs

7/18/2014
 * commodity ui and commodity and factory models