Sample grooming

*The Sample now requires Air 3.7 as this is the latest non-beta Air
Version
*Added Error handling when no network connection is available
Fixed Bug in Crypto lib (twitter now works again)

*Fixed a bug in as3Crypto lib that broke the TLS Handshake
(see
https://code.google.com/p/as3crypto/issues/detail?id=8&q=parseHandshakeH
ello)
*as3Crypto is included as a source library