Create Part IX: Extra things.md
Merge pull request #39 from BillsJ/patch-4

Create Part IX: Extra things.md
Update Part IX: Extra things.md
Update Part IX: Extra things.md
Rename Part IX: Extra things.md to Part IX: Complex Interfaces.md
Update Part IX: Complex Interfaces.md
Update Part II: Printing.md
Update Part V: Methods.md
Update Part VI: Arrays.md
Update Part VI: Arrays.md
Update Part VI: Arrays.md
Update Part VI: Arrays.md
Update Part VI: Arrays.md
Merge branch 'master' of https://github.com/HashanP/cadmus