Added scalastyle2 to demonstrate .previous
Chapter 11 projects
Cleanup syntax for chapter 11.
use scalastyleConfig rather than scalastyle2
Add .idea to .gitignore
Chapter2: Fix type mismatch errors by passing Strings instead of Ints to Kitten constructor
Chapter2: Fix type mismatch errors by passing Lists instead of Sets to Kitten and BuyerPreferences constructors
Chapter3: Rename UsedKittenMain to PreownedKittenMain
Chapter5: Remove unused import statement
Chapter5: Remove unused import statements
Chapter5: Remove unused import statements
Chapter5: Replace junit-interface-0.10-M3 dependency with stable version 0.10 to make it consistent with the book
Chapter6: Remove unused import statement
Chapter6: Remove unused import statements
Chapter6: Remove unused import statement
Chapter6: Remove unused import statements
Add .idea_modules to .gitignore
Chapter7: Remove unused import statements
Chapter7: Remove unused import statement
Chapter7: Remove unused import statement