Update PKGBUILDs.
Merge pull request #29 from ascarpino/master

When systemd is used, use systemctl to reboot/poweroff the computer
Update Xsession script copyright info.
Set seat id and virtual terminal number on the session process.
Set DESKTOP_SESSION env variable.
Clean up.
Rename config option AuthPath -> AuthDir.

Dir suffix is more logical and more consistent with other options like
ThemesDir, FacesDir etc.
Set MaximumUid default value to 65000.
Implement user filtering based on user name.
Implement user filtering based on shell.
make the systemd file reflect the install dir
make TEST configurable at configure time with -DTEST=1
build
Update CONTRIBUTORS.
Check for systemd instead of libsystemd-daemon. Fixes #31.
Clock: Allow setting time and date fonts seperately.

Now we dont use custom font for date in maldives and maui themes, this
should fix issues with native characters. #30, #32
Add website property for the elarun theme.
Update install docs.
Use an empty string as default value for hideUsers and hideShells.
Fix memory leak.