Remove binary from source tree

Leftover ViewRF binary should be removed.

Signed-off-by: Matt Porter <matt@ohporter.com>
Fix g++ linking issue due to undefined references.

libav is C and needs extern "C" {} around includes
from C++ code.

Signed-off-by: Matt Porter <matt@ohporter.com>
Fix build for !arm

Limits the NEON routines to ARM and adds an option to only
build them when the neon CONFIG is on...which is left as default
so as to not change anything for BBB users.

Signed-off-by: Matt Porter <matt@ohporter.com>
Merge pull request #1 from ohporter/x86-fixes

x86 fixes