colord 1.4.8

[Richard Hughes]

New Features:
 - Add AppStream metainfo XML with hardware provide info (Petter Reinholdtsen)
 - Add support for -Dsystemd_root_prefix to make local building easier (Richard Hughes)
 - Install sysusers.d config file if configured user is not root (Luca Boccassi)

Bugfixes:
 - Add the source attribute for each man page (Xi Ruoyao)
 - Drop component type from AppStream metadata XML to avoid parsing error (Petter Reinholdtsen)
 - Fix a critical warning when running the self tests (Richard Hughes)
 - Fix USB scanners not working with RestrictAddressFamilies (Ferdinand Bachmann)
 - Fix writing to the database with ProtectSystem=strict (Richard Hughes)
 - Properly set the status to CD_SESSION_STATUS_RUNNING (Laurent Bigonville)
 - Use g_ascii_strtod instead of atof() (Laurent Bigonville)
 - Use sqlite3_errmsg() to avoid getting a mutable error message (psykose, Richard Hughes)

Richard.