Refactor to pass only an input stream/output stream to handler.  Create new ResponseOutputWriter class to handle all response output abstracting the underlying writer.
Merge branch 'day5' of github.com:dgarlitt/empty-webserver into day5

Conflicts:
	src/main/java/com/carebears/Request.java
	src/main/java/com/carebears/Response.java
	src/main/java/com/carebears/servlets/ParametersServlet.java
	src/test/java/RequestTest.java
	src/test/java/ServletTest.java