v2.0.2b15 -> v2.1.0b4

== Removed elements ==
v2.0.2b15 (line=575): Option_Shaders : "Enable anti-aliasing through shaders";
v2.0.2b15 (line=576): Option_Shaders_Tooltip : "Use shaders to smooth out the borders of objects to avoid pixel artifacts.\nDisable to obtain a performance gain.";
v2.0.2b15 (line=585): Option_16BitTextures : "16 bit textures";
v2.0.2b15 (line=586): Option_16BitTextures_Tooltip : "Forces all textures to have a maximum bit depth of 16 bits.\nMay improve performance.";


== Added elements ==
v2.1.0b4 (line=204): ToolSketch_Tooltip_Touch : "Sketch tool - All tools wrapped into one!";
v2.1.0b4 (line=208): ToolMove_Tooltip_Touch : "Move tool - Move objects and water";
v2.1.0b4 (line=212): ToolDrag_Tooltip_Touch : "Drag tool - drags objects when the simulation is running.";
v2.1.0b4 (line=226): ToolPolygon_Tooltip_Touch : "Polygon tool - draw free-form shapes.\nEncircle objects to select them.";
v2.1.0b4 (line=235): ToolBrush_Tooltip_Touch : "Brush - draw polygons with brush-strokes.\nTo extend an existing geometry, select it first and then draw on it.";
v2.1.0b4 (line=245): ToolPlane_Tooltip_Touch : "Plane tool - creates an infinite plane.\nWhen creating the plane, keep your finger close to the origin of rotation to rotate the plane in 15° intervals.";
v2.1.0b4 (line=250): ToolCircle_Tooltip_Touch : "Circle tool";
v2.1.0b4 (line=254): ToolGears_Tooltip_Touch : "Gear tool - Create gears with axles.";
v2.1.0b4 (line=259): ToolBox_Tooltip_Touch : "Box tool";
v2.1.0b4 (line=265): ToolChain_Tooltip_Touch : "Chain tool - creates a chain.\nTo customize your chain, select anything with two axles and in the edit menu choose \"Use as chain\".";
v2.1.0b4 (line=270): ToolSpring_Tooltip_Touch : "Spring tool - connects any two objects with a spring.";
v2.1.0b4 (line=274): ToolFixJoint_Tooltip_Touch : "Fixate - touch an object to weld it to the underlying object (or background).";
v2.1.0b4 (line=279): ToolHinge_Tooltip_Touch : "Axle tool - touch an object to connect it with the underlying object (or background) with an axle.\nAn axle can later be given a motor in the options for it.";
v2.1.0b4 (line=284): ToolThruster_Tooltip_Touch : "Thruster tool - touch or drag at where you want a thruster attached.";
v2.1.0b4 (line=288): ToolTracer_Tooltip_Touch : "Tracer tool - attaches a tracer on an object. The tracer then draws a line wherever it goes.";
v2.1.0b4 (line=295): ToolScale_Tooltip_Touch : "Scale tool - scales the selected objects.";
v2.1.0b4 (line=299): ToolCut_Tooltip_Touch : "Knife - draw a line to cut a polygon.";
v2.1.0b4 (line=306): ToolTexture_Tooltip_Touch : "Texture tool - Use this tool to move, scale and rotate the textures of objects.";
v2.1.0b4 (line=310): ToolLaserPen_Tooltip_Touch : "Laser pen tool";
v2.1.0b4 (line=373): HideWindows_Tooltip_Touch : "Temporarily hide all windows.";
v2.1.0b4 (line=376): ShowWindows_Tooltip_Touch : "Show all hidden windows. Shortcut: TAB";
v2.1.0b4 (line=379): PlayMode_Tooltip_Touch : "Toggle play-mode, in which you can only interact (play/pause, drag) and not build.";
v2.1.0b4 (line=423): LayerOptionsButton : "Layers";
v2.1.0b4 (line=424): LayerOptions : "Layers";
v2.1.0b4 (line=425): Layer_X : "Layer %1%";
v2.1.0b4 (line=426): Layer_Add : "Add new layer";
v2.1.0b4 (line=437): ShareOnAlgobox : "Share scene on Algobox";
v2.1.0b4 (line=485): SceneSaved : "Scene saved";
v2.1.0b4 (line=531): Slider_Tooltip_Touch : "Double-tap to reset the slider to its default value.";
v2.1.0b4 (line=533): LabeledSlider_Tooltip_Touch : "";
v2.1.0b4 (line=603): Options_FixedContextMenu_Tooltip_Touch : "Uncheck to have the edit menu come up only when double-tapping objects";
v2.1.0b4 (line=921): Adhesion : "Adhesion";
v2.1.0b4 (line=922): Adhesion_Tooltip : "Adhesion provides a per-contact adhesive force between objects. Adhesion is additive, meaning an adhesive material will stick to a non-adhesive one.";
v2.1.0b4 (line=954): Spongify : "Spongify";
v2.1.0b4 (line=1347): UndoSpongify : "Spongify";
v2.1.0b4 (line=1604): OnScreenKeyboard : "Keyboard";
v2.1.0b4 (line=1644): QuickTour_TopMenu_Touch : "TOP MENU\nChange language, Open options, Hide windows, View tutorials and much more.";
v2.1.0b4 (line=1651): QuickTour_Edit_Touch : "TOUBLE-TAP\nMake water, Clone, Show info, Add mechanics, etc.";
v2.1.0b4 (line=1659): PlayTour_Drag_Touch : "START -> Swing the ball with the Drag tool";
v2.1.0b4 (line=1661): PlayTour_Cut_Touch : "Cut the rope with the Knife tool";
v2.1.0b4 (line=1663): PlayTour_Zoom_Touch : "Use the Zoom tool to get a bigger picture or closer look \n(or use the pinch gesture)";
v2.1.0b4 (line=1665): PlayTour_Pan_Touch : "Use the Pan-tool to move your camera view \n(or drag the background with two fingers)";
v2.1.0b4 (line=1667): PlayTour_Drag2_Touch : "Drag to speed up the ball";
v2.1.0b4 (line=1669): PlayTour_Drag3_Touch : "Drag to shoot the ball";
v2.1.0b4 (line=1671): PlayTour_Drag4_Touch : "Drag to help the ball";


== Changed elements ==
Meta_version
v2.0.2b15 (line=19): 41;
v2.1.0b4 (line=28): 45;

ToolPolygon_Tooltip
v2.0.2b15 (line=206): "Polygon tool (P) - draw polygons.\nHold down SHIFT to draw straight lines.\nEncircle objects to select them.\n\nRotate objects by dragging them with your right mouse button\nPan the view by dragging the background with your right mouse button\nZoom in and out by using you mouse scroll wheel.";
v2.1.0b4 (line=218): "Polygon tool (P) - draw free-form shapes.\nHold down SHIFT to draw straight lines.\nEncircle objects to select them.\n\nRotate objects by dragging them with your right mouse button\nPan the view by dragging the background with your right mouse button\nZoom in and out by using you mouse scroll wheel.";

AboutText
v2.0.2b15 (line=325): "Created by Emil Ernerfeldt\nCopyright 2008-2011, Algoryx simulation (www.algoryx.se)\nalgodoo@algoryx.se\nwww.algodoo.com";
v2.1.0b4 (line=363): "Created by Emil Ernerfeldt\nCopyright 2008-2013, Algoryx simulation (www.algoryx.se)\nalgodoo@algoryx.se\nwww.algodoo.com";

Alpha_Tooltip
v2.0.2b15 (line=675): "Opacity";
v2.1.0b4 (line=722): "Alpha / Opacity";

ChainBreakeImpulse_Tooltip
v2.0.2b15 (line=810): "The chain will break if it ever experiences an impulse greater than the given threshold.\nDrag the slider with the right mouse button to randomly distribute the break limit over an interval.";
v2.1.0b4 (line=858): "The chain will break if it ever experiences an impulse greater than the given threshold.";

CSGMenuButton
v2.0.2b15 (line=930): "CSG";
v2.1.0b4 (line=981): "Combine shapes";

CSGMenu
v2.0.2b15 (line=931): "CSG";
v2.1.0b4 (line=982): "Combine shapes";

UndoCSG_Cut
v2.0.2b15 (line=1331): "CSG-cut";
v2.1.0b4 (line=1383): "cut";

UndoCSG_Intersect
v2.0.2b15 (line=1332): "CSG-intersection";
v2.1.0b4 (line=1384): "intersection";

UndoCSG_Difference
v2.0.2b15 (line=1333): "CSG-difference";
v2.1.0b4 (line=1385): "difference";

UndoCSG_Union
v2.0.2b15 (line=1334): "CSG-union";
v2.1.0b4 (line=1386): "union";