[PlatformWithOS] fixes for SPI on beaglebone black

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
[PlatformWithOS] A short document about using Arch Linux

This was written from memory, so it needs to be rechecked.

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
[ExampleScripts] Arch install updates and systemd configuration for epd_fuse driver

This explains how to get epd_fuse running on Arch Linux for Raspberry Pi
and Beaglebone Black.  Also the Arch fonts are on a different path.

Not fixed:  "import Image"
need to change to: from PIL import Image
there is a sed command in the README-Arch.md
as a temporary work around

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
[ExampleScripts] add NTP note

systemd commands to enable and start ntp

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
[PlatformWithOS] improve the NTP timezone setup notes

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
[PlatformWithOS] Fix for import problem

Actually no problem on Debian, as "from PIL import" works the same as Arch

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
[PlatformWithOS] extra font for Arch with Clock27.py

add some missing sudo to readme

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
[PlatformWithOS] arch systemd files

1. remove the mount service
2. epd-fuse.service now can be configured through /etc/default/epd-fuse
   no need to edit service file
3. add a systemd service file for Clock27.py
4. update Arch instructions

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
[PlatformWithOS] ensure no error if mountpoint already exists

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
[PlatformWithOS] make *-install for ARCH Linux

detect ARCH Linux in the Makefile for bb-install and rpi-install

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
[PlatformWithOS] ClockDemo font for ARCH

Signed-off-by: Christopher Hall <christopherhall.hsw@gmail.com>
Merge remote-tracking branch 'upstream/master'
Removed ARCH readme as it is not confirmed. Fixed array error in TwitterDemo and added the new IpAddrDemo