0.1.2.0:xinreg_help: update; source xwinreg_help
0.1.2.0:xinreg_usage: update
0.1.2.1:README: update
0.1.2.1:xwinreg: a conf file should be read before processing input file by xwinpp, so XWINREG_INPUT_FILE may be set in the conf file
0.1.2.1:xwinreg.conf.example: insert XWINREG_INPUT_FILE variable