Add support for systemd network interface names

From the documentation on freedesktop.org: "Starting with v197
systemd/udev will automatically assign predictable, stable network
interface names for all local Ethernet, WLAN, and WWAN interfaces. This
is a departure from the traditional interface naming scheme ('eth0',
'eth1', 'wlan0', ...), but should fix real problems." The new scheme
uses the following prefixes: 'en*' for Ethernet, 'wl*' for WLAN, and
'ww*' for WWAN. Therefore, simply using a prefix of 'e*', as is done in
this commit, should work fine for locating Ethernet interfaces in both
the old and new naming schemes.
Add ACPI hook to automatically call think-rotate
State dependencies
Merge branch 'master' into udev-keycodes
Explicitly state the required version of udev
Remove fixme from makefile

We have addressed this in the README file, so it is taken care of.
Install all languages
Support my ThinkPad X220 as well on Ubuntu 13.04
More logging output
Restart ACPI daemon
Allow to set default rotation in config
Merge branch 'master' into acpi-rotate
Merge branch 'master' into udev-keycodes
Document need of restarting acpid
Call it “project website”
Use mylogger construct
Indent using 4 spaces
Make think-rotate-hook executable
Insert GPL into every file
Add copyright into all manual pages