initscripts: Add gliveserver autostart script

This adds an initscript which automatically starts the gliveserver in RTSP
server mode.  If you have a Wandcam connected, then this will automatically
make the Wandboard into a wireless IP camera.
conf: Boost priority

At the lower priority, some packages were not being favored.
initscripts: remove gstreamer demo

This will reappear in another layer (meta-wandcam-demo).
linux-firmware: add bcm4330 ap-mode firmware
linux-firmware: update recipe to add bcm4330 support and use alternatives
packagegroup: remove ap-mode linux-firmware package

AP-mode package not needed with a recent change to the linux-firmware
bbappend in this layer.  AP mode firmware is automatically selected to
be used by default if this layer is included.
README: Remove BCM4330 from To-do list

Recent changes have added BCM4330 support, so this is done.