merge release4.12.0 branch to develop branch
change version back to 4.13
update AIR / FP to default to more recent version
fixed incorrect references to FlexJS in license text
fix some bugs in the air install and clean up 'in' folder if success
more installer fixes.  swfobject now goes in the right javascript folder, pick up default player and air versions from sdk-installer-config-4.0.xml
this file shows up in rat
use tofile instead of todir
more use tofile instead of todir