Increase required OpenGL version to 3.3

This gives us several niceties such as Sampler Objects, shader attribute
locations and Timer Queries.

src/citra/emu_window/emu_window_glfw.cpp

@@ -89,7 +89,7 @@ EmuWindow_GLFW::EmuWindow_GLFW() {
         exit(1);
     }
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
     // GLFW on OSX requires these window hints to be set to create a 3.2+ GL context.
     glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
     glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

src/citra_qt/bootmanager.cpp

@@ -109,7 +109,7 @@ GRenderWindow::GRenderWindow(QWidget* parent, EmuThread* emu_thread) :
 
     // TODO: One of these flags might be interesting: WA_OpaquePaintEvent, WA_NoBackground, WA_DontShowOnScreen, WA_DeleteOnClose
     QGLFormat fmt;
-    fmt.setVersion(3,2);
+    fmt.setVersion(3,3);
     fmt.setProfile(QGLFormat::CoreProfile);
     // Requests a forward-compatible context, which is required to get a 3.2+ context on OS X
     fmt.setOption(QGL::NoDeprecatedFunctions);