all your base v0.8

Incidental changes to comments.
Project 4 - Game v0.6

Added textarea for inventory display.
Increased size (rows) of history textarea.
Changed body onload function name.
Changed email link.
Project 4 - Game v0.6

Added global variables for rucksack inventory and carry limits.
Defined class/prototype for inventory items.
Added initialization of inventory class/prototype items to function
initializeOnLoad.
Added updateInventoryTextArea to initializeOnLoad and updateAllDisplays
functions.
Added and updated various comments where needed.
Removed some deprecated (commented) code.
Commented out the guessing exercise.