Added camera wiggle animation
Smooth transition from loading screen to menu
Added messageboxes
	renamed:    src/gui/guiElement.java -> src/gui/GuiElement.java
	modified:   mars city.log
	modified:   res/lang/DE.xml
	deleted:    res/saves/savegame.save
	modified:   src/animation/AnimationManager.java
	modified:   src/game/Game.java
	modified:   src/game/Main.java
	modified:   src/game/ResourceManager.java
	modified:   src/gui/AbstractGuiElement.java
	modified:   src/gui/GUI.java
	modified:   src/gui/GuiButton.java
	modified:   src/gui/GuiElement.java
	modified:   src/gui/GuiEvent.java
	modified:   src/gui/GuiEventType.java
	modified:   src/gui/GuiEvents.java
	modified:   src/gui/GuiLabel.java
	modified:   src/gui/GuiPanel.java
	modified:   src/gui/MsgBox.java
	modified:   src/res/lang/DE.xml
Gui refactoring

Removed unnecessary method overrides, added an animation to messageboxes
and a mouseover effect to buttons
Added building tooltips
Merge pull request #18 from ForceField-IndieGames/Benedikt

Major gui improvements (+messageboxes+tooltips)