- don't use a reserved name (starting with an underscore)
- use a file-local mangled name (starting with two underscores
- use renpy.dynamx to cleanup the variable automatically
(cherry picked from commit 3e86094b0b)
* Fixed miss-named Cho "crooked_smile" expression.
* Fixed Tonks' "Morph" effect being delayed in some instances.
* Fixed some calls showing multiple ">".
* Removed bld and blktone in some places where it's replaced by inner thought and narrator character.
* Minor writing fixes.
* Minor character positioning fixes.
