Implemented selector-button-function for lamp-placing-mode
Added new solver type. 
ModelChangeListener added.
ModelSolverTranslator added
Merge branch 'master' of ssh://gitolite@server:22/AkariDroid.git

Conflicts:
	source/src/at/ac/uibk/akari/controller/GameController.java
Added new textures for cell
Reimplemented save-game, that now serializes all special points as json
Fixed errors from previous commit
Implemented removal hints
Resized texture to have nicer textures
Merge branch 'master' into development
Added gen folder to gitignore
Added zoom limits and removed R.java from index (ignoring with gitignore)
Added scroll-lock so that the game-field can't be scrolled outside the screen
Added apk-folder that contains the current stable version of the apk