Add Gesture support

Only supports OnRelease right now. Also, some bugs were spotted while
writing this:

 - Sometimes deadlocks on startup (cause unknown)
 - Sometimes valid CIDs will be unknown (bug may have been fixed?)

src/logid/actions/Action.cpp

@@ -22,6 +22,7 @@
 #include "KeypressAction.h"
 #include "ToggleSmartShift.h"
 #include "ToggleHiresScroll.h"
+#include "GestureAction.h"
 
 using namespace logid;
 using namespace logid::actions;
@@ -53,6 +54,8 @@ std::shared_ptr<Action> Action::makeAction(Device *device, libconfig::Setting
             return std::make_shared<ToggleSmartShift>(device);
         else if(type == "togglehiresscroll")
             return std::make_shared<ToggleHiresScroll>(device);
+        else if(type == "gestures")
+            return std::make_shared<GestureAction>(device, setting);
         else
             throw InvalidAction(type);