Updated the Run sample apps section for the About Samples

Added in the documentation for the Windows About samples.
Updated the linux version of the documentation to include
the new samples and the legacy samples that can still be
run.

Change-Id: Ief56fa07bc1574393e7d0479a39248c9cee76057
Signed-off-by: George Nash <georgen@qce.qualcomm.com>
Add 14.12 download section.

Change-Id: I2b7b1fc69fb88f96e437245bf8ba8c72d4211c02
Signed-off-by: Mathew Martineau <mathewm@qce.qualcomm.com>