Revert "updated project settings to export facebook jar"

This reverts commit 91ac212a52c7c5e0172b71f9c22b20971e4d1bfd.
Random adjustment of eclipse preferences until libraries work as expected

Conflicts:
	OpenKitSDK/.classpath
	samples/OKSampleApp/.classpath
Bumped sample app target sdk to 17 (aka, Android 4.2 APIs)