Create section about case class.
Reduce java-ish level of first example.
Fix hashCode typo.
Better naming for case class.

Change name of first example to avoid name clash.
Add mising empty line.
Add section about copying.

Fix name. CaseCircle to Circle
Reduce number in :javap from case class.

Some typos fix.
Add information about toString
Move extractor part to end of file.
Update index.html
Add missing space in code-style.
pulled in Lukasz's contrib, will have to fix a bit
ndex