installer/SOURCES/oem-installer-0.2/installer.conf: Set DISPLAY,
XAUTHORITY and LC_ALL enviroment variables.
installer/SOURCES/oem-installer-0.2/installer.service: After
graphical.target rather than kdm.service, and Requires default.target
rather than graphical.target.
installer/SOURCES/oem-installer-0.2/installer.sh: Remove sleep time.