first pass code updates: b and some c
Tested additions to BasicHttpRequest (1.c in exercise)
Implemented BasicHttpResponse (4.c) and started basic implementation in BasicHttpWorker (4.d) - basic response and display in browser. File system interaction (retrieval of file, etc) not implemented.

1.a, b, c, part of d complete and first stage testing done.
adding .gitignore to stop tracking .class files
removing class files that were previously tracked