Deleted unused Code

Deleted unused code such senseless "context" files or scenes
removed senseless code

TextInput hasnt a sprite or a visible flag - removed
Extensions

Bitmaps are now able to change the color and sprites are scalable to all
sizes.
Fixed note issue and design

Notes are drawed to early - fixed.
Notes now have a own window on the upper border.
Inputs

Mouse right click added.
Mouse scroll wheel added
Skins

create a skin for notes (and a backup?)
Load.rb

removed and added a mass of files... old and new ;)
application dir is now a global value!
Opacity for windows

now windows will ever be half transparent ;)
Added Label

Added a label field. this field shows only text.
UpDown added

A control to switch in lists without showing a horrible long list byself
(lesser placement)
FileBrowser added

A application own file browser added. Used for selecting osu dir or
graphics to input (last not yet, but it will be follow)
Skinnables

fixed some stuff.
Settings

Add a new setting for "last edited skin"
Options using browser

included the new file browser into the options screen.
Its working with a new scene.
New Scene Skins

a new and clean scene for skins creating. Created new module (namespace)
"SkinCreating"
SkinHelper (loader)

A special loader for explicit bitmaps, such as a complete hit circle.
This module will bild the correct graphics and return it.
SkinPreview field

Added a new field for skins. It shows some graphics from the skin and a
text (such as the skin name). It will be used for the main selectoins of
skin creating (new skin, load skin, edit last skin...) and will be used
for the load skin screen.
Testcode file

Testcode file!
Context startup

select if you want to create, load or edit last skin.