Merge pull request #3 from mskyttner/master

install scripts and preliminay update script
Minor changes to existing scripts. Added a new script to initially set up the raspi prerequisites.
Mostly system changes.
Sound cards now have a persistent slot number (/etc/modprobe.d/modprobe.conf).
Default sound settings in ~/.asouncdrc removes the need to configure them via environment variables.
Install script can setup Dns-masq/nat/dhcp (makes rPi function as a router).
Install script should take care of setting up Huawei E3131 3G dongle.
Configuration files moved to lib dir.
preps for merging
merge with upstream/master