master
creds: hold credentials
tidy-up: fix comment indentation
lib: use lib source directory as base include path
spnego: block NTLM fallback in SPNEGO negotiation
gsasl: fix potential double free
krb5_sspi: fix error message on `DecryptMessage()` fail
tidy-up: comments, messages, formatting
build: enable `-Wformat-signedness`, fix issues found
lib: transfer origin and proxy handling