COMMON: Remove the 'std::' from calls to {,v}snprintf

Otherwise, the #define in system.h will not work
COMMON: Define PACKAGE_STRING if not using autotools

This string is used in various places, so we need to
manually define it if it hasn't been defined externally
DOCS: Add username to AUTHORS file
KOTOR: Add sounds for button mouse over and select
Merge remote-tracking branch 'upstream/master' into fixes