Fixed typo on AIR 3.8 urls for both win and mac
Added new sdk-installer-config-3.0.xml with all versions of FP and AIR
Reverted sdk-installer-config-2.0.xml to previous version
Fixed typos in urls for Flash Player swcs 11.0 to 11.7
Removed first step as an installation activity step
Styling applied to new elements to keep them consistent with the rest of the app