Operators factored out.
build.sbt: -deprecation added
first refactoring
some typos
- removed #.getName
- result of calc moved to Double
1st ImageMonad
.gitignore -> .worksheet/ added
Merge branch 'master' into imageMonad
threshold, sobel and sharpen operators for ImageMonad object
sharpen configurable
lineResult refactored -> RGB int
threshold changed to Color.WHITE and Color.BLACK
Create README.md
Update README.md
Merge branch 'master' into gui

Conflicts:
	src/main/scala/AkkaSobel/Sobel.scala