Qt Embedded 4.8.5 ( and FastCGIqt to test )

Adding toolchains with Gcc 4.7.3, Gcc 4.8.1 and Glibc 2.18.
Adding libqt4-embedded that will require the new toolchains.
These extensions have been tested on cedarview and 88f6281, but should also work for bromolow and x86.

Part 3 of 3: Adding libqt4-embedded (and Helloworld-FastCGIqt package for testing)