chapter06
new chapter10
success test
chapter 10 finish
chapter10 delete comment
chapter11
commit test
Merge branch 'chapter11'

* chapter11:
  chapter11
  chapter10 delete comment
  new chapter10
  chapter06
Merge branch 'chapter10'

* chapter10:
  chapter 10 finish
  success test

Conflicts:
	src/test/scala/chapter10/Chapter10.scala