+ start at "Server Root" using current directory "./"
+ added DirectoryLister to RequestHandler
Merge branch 'master' of https://github.com/silver-lu/empty-webserver

Conflicts:
	src/test/java/com/undecided/RequestHandlerTest.java
Merge branch 'master' of https://github.com/silver-lu/empty-webserver

Conflicts:
	src/main/java/com/undecided/DirectoryLister.java
	src/test/java/com/undecided/RequestHandlerTest.java