Rename directory to build-yocto-fsl-arm
Add reference to subproject build-yocto-fsl-arm
Move also .gitignore to build-yocto-fsl-arm
Complete refactoring of subproject

Replace additional occurrences of build-yocto-wandboard with build-yocto-fsl-arm

Signed-off-by: Gianpaolo Macario <gmacario@gmail.com>
Add result of building fsl-image-multimedia-full for imx6qsabresd
README.md: More info on the `do_mirror.sh` script
Merge pull request #31 from gmacario/rename-build-yocto-fsl-arm

Rename subproject to build-yocto-fsl-arm