Update gitignore

Ignore src/org.gnome.Maps.service
Updated Lithuanian translation
ContextMenu: use geoclue global service

This should have been done when geoclue was moved as an application
global service at commit 25c0ec4 but forgotten.

https://bugzilla.gnome.org/show_bug.cgi?id=732121
Settings: use schema_id property

The 'schema'-property on GSettings is deprecated and was recently
removed in GLib master. This made Maps crash on start.

Move to the new 'schema_id'-property instead.
Release 3.13.3
Updated Hebrew translation
Updated Russian translation
Updated Spanish translation
Updated Hungarian translation
Updated Greek translation
Updated Brazilian Portuguese translation
Add MapMarker and MapBubble classes

These are base classes intended to create markers associated with
content rich popovers.

https://bugzilla.gnome.org/show_bug.cgi?id=722871
Refactor user location marker to support bubble

https://bugzilla.gnome.org/show_bug.cgi?id=722871
Replace MapLocation with SearchResultMarker,Bubble

https://bugzilla.gnome.org/show_bug.cgi?id=722871
Popovers test