add FilePageNext and FilePagePrevious a toggle function
change 'toggle' to 'wrap'
Merge pull request #137 from kyouryuukunn/toggle_page

add FilePageNext and FilePagePrevious a toggle function
config.has_quicksave defaults to True
set has_quicksave to False for old vertion
Merge pull request #136 from kyouryuukunn/has_quicksave

Change the default for config.has_quicksave to True.
Merge branch 'master' of github.com:renpy/renpy into devel