Complete passTurn and turnStat

The passTurn Javascript macro was not taking variable references
correctly, so the same functionality was implemented within a
twee passage. Similarly, the turnStat() function was added to the
Mod Javascript class. Because of the shift, the "attack" passage
was moved to the same file as passTurn, and the file itself was
renamed to reflect its focus on mechanics.
Clean up files

Deleted the files which were renamed (deleted) through the file
system instead of git.
Merge branch 'rpgbattle1'

The branch rpgbattle fixes previous attempts at a turn-passing mechanism.
It also makes for cleaner file and code organization.