initial commit

Head First Java book code.
-- Refactored SimpleDotCom to DotCom.
-- Changed to use ArrayList instead of simple arrays.
Updated DotComBust game.
Uncommented the "cheater" comments to show the location of the DotComs to bust.
Chapter 7: Inheritance & Polymorphism - Better Living in Objectville
Combined some classes into one file.
git ignore java and jetbrains intelliJ ide files.
Removed .gitignore. In wrong directory.
Created .gitignore

Addded Java and IntelliJ files to .gitignore
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