add schema overrides

schemas-override/org.gnome.Terminal.gschema.override

@@ -0,0 +1,3 @@
+[org.gnome.Terminal.Legacy.Settings]
+menu-accelerator-enabled=false
+dark-theme=true

schemas-override/org.gnome.desktop.input-sources.gschema.override

@@ -0,0 +1,3 @@
+[org.gnome.desktop.input-sources]
+sources=[('xkb', 'us'), ('xkb', 'ru')]
+xkb-options=['grp:alt_shift_toggle,grp_led:scroll']

schemas-override/org.gnome.desktop.wm.preferences.gschema.override

@@ -0,0 +1,2 @@
+[org.gnome.desktop.wm.preferences]
+button-layout='appmenu:minimize,maximize,close'

schemas-override/org.gnome.shell.extensions.dash-to-panel.gschema.override

@@ -0,0 +1,2 @@
+[org.gnome.shell.extensions.dash-to-panel]
+panel-element-positions='{"0":[{"element":"showAppsButton","visible":false,"position":"stackedTL"},{"element":"activitiesButton","visible":false,"position":"stackedTL"},{"element":"leftBox","visible":true,"position":"stackedTL"},{"element":"taskbar","visible":true,"position":"stackedTL"},{"element":"centerBox","visible":true,"position":"stackedBR"},{"element":"rightBox","visible":true,"position":"stackedBR"},{"element":"dateMenu","visible":true,"position":"stackedBR"},{"element":"systemMenu","visible":true,"position":"stackedBR"},{"element":"desktopButton","visible":true,"position":"stackedBR"}]}'

schemas-override/org.gnome.shell.gschema.override

@@ -0,0 +1,2 @@
+[org.gnome.shell]
+enabled-extensions=['background-logo@fedorahosted.org', 'appindicatorsupport@rgcjonas.gmail.com', 'dash-to-panel@jderose9.github.com', 'apps-menu@gnome-shell-extensions.gcampax.github.com', 'desktop-icons@gnome-shell-extensions.gcampax.github.com']