+ * Translations update

+ * move to GTK+3 (>= 3.14), drop GTK+2 code and --with-gtk build option

+ * background: add missing GTK+ version check to avoid build warning

+ * background: check for stable release of GTK+3, not for development one

+ * build: require libmatemixer >= 1.10 (first stable release)

+ * build: require libxklavier >= 5.2

+ * remove extra glib version check from build conf

+ * build: require dconf >= 0.13

+ * fix description of motion-acceleration key in touchpad schema

+ * mouse: implement separate mouse/touchpad motion settings using XInput

+ * mouse: add separate keys for touchpad motion settings (not used yet)

+ * mouse: use same #define for 'left-handed' key of mouse and touchpad

+ * mouse: make separate callback for processing touchpad settings

+ * mouse: use more common g_strcmp0 function instead of g_str_equal

+ * mouse: add key for separate touchpad handedness (left/right-handed)

+ * schema: fix indent a bit

+ * mouse: add helper function for fetching Atom property

+ * common: don't create Atom property when checking for its presence

+ * mouse: a bit more of refactoring, less push/pop calls

+ * mouse: move setting left-handed for one device to new function

+ * mouse: move setting tap to click for one device to new function

+ * mouse: move enabling/disabling one touchpad to new function

+ * mouse: move setting bool property for one device to new function

+ * mouse: move setting click actions for one device to new function

+ * mouse: move setting natural scroll for one device to new function

+ * mouse: don't copy struct when it's not needed, pass pointer instead

+ * mouse: move setting middle button for one device to new function

+ * mouse: don't create duplicate GSettings instance

+ * mouse: don't apply any settings if XInput isn't present

+ * mouse: remove duplicate function

+ * build: require XInput unconditionally

+ * xrandr: use proper libmate-desktop function in GTK+3 build