StrBuf
Remove priv keyword
Fix comparison
Fix brokenness in request
Fix method

This is kinda kludgy, but &str is probably a reasonable type to pass
about
Unbreak test utils

Is Vec::from_slice() wrong here? IT seems like a lot of juggling
Fix serialization_utils awkwardly

I'm not sure I like reimplementing collect() on StrBuf internally
Fix a bunch more conversion errors
delurk some more str
http::headers
Fix status