When starting oocalc or ooimpress from oowriter's menu get_app_for_window,
fails to recognize the newly started up as such, which result into the appMenu
still showing "Openoffice.org Writer" as app name.
Fix this by trying to window itself first before using the group for finding the app.
https://bugzilla.gnome.org/show_bug.cgi?id=611288
In some situations we might need to look up an application from
a process identifier, such as the notification system where we
will determine application from the message sender.
For the purposes of determining which application is focused, don't
skip "uninteresting" windows. The old get_focused_window code
was used for usage tracking, but here we want reliable application
association.
Also convert a .text= to .set_text that was missed with the last
patch.
https://bugzilla.gnome.org/show_bug.cgi?id=599206
The two parts were mapping windows to applications, and
recording application usage statistics. The latter part
(now called ShellAppUsage) is much more naturally built on top of
the former (now called ShellWindowTracker).
ShellWindowTracker retains the startup-notification handling.
ShellWindowTracker also gains a focus-app property, which is
what most things in the shell UI are interested in (instead of
window focus).
ShellAppSystem moves to exporting ShellApp from more of its
public API, rather than ShellAppInfo. ShellAppSystem also
ensures that ShellApp instances are unique by holding
a hash on the ids.
ShellApp's private API is split off into a shell-app-private.h,
so shell-app.h can be included in shell-app-system.h.
Favorites handling is removed from ShellAppSystem, now inside
appFavorites.js.
Port all of the JavaScript for these changes.
https://bugzilla.gnome.org/show_bug.cgi?id=598646
