Chars more robust, differnt audio for each level,

Fixed walkking bug also
Characters now have the xml option to not have the speech bubble or the
wobble (Need to update the xml file for each char, only first has the
changes at the mo)
now a seperate audio file for each level to allow differing audio.
Merge branch 'Cow-Features' of https://github.com/Demorro/AMG_Teaching_Repo into Cow-Features