Add support for meta-qt5

Signed-off-by: Simon Busch <morphis@gravedo.de>
Add meta-ruby to list of needed layers

Signed-off-by: Simon Busch <morphis@gravedo.de>
layers.txt: bump meta-qt5 and bitbake revision

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
layers.txt: Initial setup for Tofee repository

Signed-off-by: Christophe Chapuis <chris.chapuis@gmail.com>
Conflicts:

	conf/layers.txt
bblayers.conf: add meta-acer layer

Signed-off-by: Christophe Chapuis <chris.chapuis@gmail.com>
setup-env: set MACHINE=a500 by default

Signed-off-by: Christophe Chapuis <chris.chapuis@gmail.com>