Match folks' name and nick fields, in addition to alias,
and look at email addresses in addition to im addresses.
This is more in line with what gnome-contacts does.
To match this new usage, rename the ALIAS_..._WEIGHT and
IM_..._WEIGHT constants to NAME_ and ADDR_, respectively.
https://bugzilla.gnome.org/show_bug.cgi?id=660580
This adds contacts search to shell, powered by libfolks.
Changes:
- Add Folks and Gee to the build system
- ShellContactSystem, a backend in C
- ContactDisplay, search frontend in JS
https://bugzilla.gnome.org/show_bug.cgi?id=643018