Simian avatar physics update: Removed horizontal resistance while falling, made jump distance constant, fixed animation switching to falling when descending from a long jump, fixed gravity still accumulating while "falling up".
Simian avatar physics update: Removed horizontal resistance while falling, made jump distance constant, fixed animation switching to falling when descending from a long jump, fixed gravity still accumulating while "falling up".

git-svn-id: c32cf1ecefca26b8770d7b0740bc0c5c174087e4@2166 c754d5e9-d413-0410-bcdf-9574c9dba6b7

jhs/libopenmetaverse,jhs/libopenmetaverse,jhs/libopenmetaverse,jhs/libopenmetaverse