initial commit
Added in the Max HP and XP properties to the character object.  Need to figure out
advanced event listeners which will dynamically update the hp and xp when those input
boxes change.
Improved Sort By Initiative feature
--ISSUES FIXED

  --Clicking on input boxes of a character no longer highlights the character. Only
   clicking on a box does.
  --Order by Initiative is run more efficiently now, retaining the values of the
  input boxes as well as keeping the respective IDs for the divs the characters
  were in prior to re-ordering.
Merged changes