content: need flags for access, static and final.
content: Added String() methods for prettier printing.
util/errors: new package calling into the standard errors package with
			 an added stack trace
net/testdata: added public domain source code for the simple examples
			  and commented on where they were downloaded from.
net: Better signature type resolution. #12
net: Set static/final/access flags #12
net: Completion output is now part of test suite #12