change chart, mention base script and objects
Merge branch 'develop'
update News
update Readme.md for next release
bugfix for button coloring, pressed while off  

never color root prim  
use setCam instead of calling savedCam (so don't need to take care of
button coloring and also get chat feedback)  
let user use 1 to 4 for cam positions too  
enhance help message  
remove unneeded if, defCam and comment
change to messages and llDialog
comment on failure to change camera perspective