Move .desktop and GSettings schema file

Previous commit exposed a bug caused by moving some of the client's
resources in the source tree.  Since much of the client's resources
are stored off the source root directory, it doesn't make sense to
special case the .desktop file and the GSettings file and place them
in the client source itself.  This moves them out and makes the
appropriate changes in the CMake files and source code.

desktop/CMakeLists.txt

@@ -0,0 +1,33 @@
+#
+# Install geary.desktop
+#
+install(
+    FILES
+        geary.desktop
+    DESTINATION
+        share/applications
+)
+
+# Optional: run update-desktop-database at install time.
+# (This has to happen after the geary.desktop file is installed.)
+if (DESKTOP_UPDATE)
+    install(
+        CODE
+            "execute_process (COMMAND update-desktop-database)"
+        CODE
+            "message (STATUS \"Updating desktop database\")"
+    )
+    
+    add_custom_target(
+        uninstall-desktop-update
+        DEPENDS
+            uninstall
+        COMMAND
+            update-desktop-database
+    )
+else ()
+    install(
+        CODE "message (STATUS \"Not updating desktop database\")"
+    )
+endif ()
+

desktop/geary.desktop

@@ -0,0 +1,12 @@
+[Desktop Entry]
+Icon=geary
+Name=Geary
+GenericName=Email Client
+Comment=Send and receive email
+TryExec=geary
+Exec=geary %U
+Type=Application
+Terminal=false
+Categories=GNOME;GTK;Network;Office;Email;
+MimeType=x-scheme-handler/mailto;
+

desktop/org.yorba.geary.gschema.xml

@@ -0,0 +1,66 @@
+<schemalist>
+
+<schema id="org.yorba.geary" path="/org/yorba/geary/">
+    
+    <key name="window-maximize" type="b">
+        <default>false</default>
+        <summary>maximize window</summary>
+        <description>True if library application is maximized, false otherwise.</description>
+    </key>
+    
+    <key name="window-width" type="i">
+        <default>1024</default>
+        <summary>width of window</summary>
+        <description>The last recorded width of the application window.</description>
+    </key>
+    
+    <key name="window-height" type="i">
+        <default>768</default>
+        <summary>height of window</summary>
+        <description>The last recorded height of the application window.</description>
+    </key>
+    
+    <key name="folder-list-pane-position" type="i">
+        <default>-1</default>
+        <summary>position of folder list pane</summary>
+        <description>Position of the folder list Paned grabber. -1 means unset.</description>
+    </key>
+    
+    <key name="messages-pane-position" type="i">
+        <default>-1</default>
+        <summary>position of message list pane</summary>
+        <description>Position of the message list Paned grabber. -1 means unset.</description>
+    </key>
+    
+    <key name="autoselect" type="b">
+        <default>true</default>
+        <summary>autoselect next message</summary>
+        <description>True if we should autoselect the next available conversation.</description>
+    </key>
+    
+    <key name="display-preview" type="b">
+        <default>true</default>
+        <summary>display message previews</summary>
+        <description>True if we should display a short preview of each message.</description>
+    </key>
+    
+    <key name="spell-check" type="b">
+        <default>true</default>
+        <summary>enable inline spell checking</summary>
+        <description>True to spell check while typing.</description>
+    </key>
+    <key name="play-sounds" type="b">
+        <default>true</default>
+        <summary>enable notification sounds</summary>
+        <description>True to play sounds for notifications and sending.</description>
+    </key>
+    <key name="show-notifications" type="b">
+        <default>true</default>
+        <summary>show notifications for new mail</summary>
+        <description>True to show notification bubbles.</description>
+    </key>
+
+    
+</schema>
+
+</schemalist>