Rewritten vars, Images now text, Arrows now drawn

All the variables have been rewritten to look a lot neater, easy to
remember and write. Images that are just text are now loaded as love2d
text with the same font. Menu arrows are now drawn as love2d shapes
instead of images. All images that are not needed anymore are removed.
Also fixed menu buttons so that they are centre with the arrows.
Removed images that are no longer needed

Images have been changed to use text and love2d shapes instead. So they
are no longer needed.
Title change

Title changed to include the new version number.
Merge branch 'thomas-changes'