Spellchecks

darcs-hash:20100129134333-58252-96f3b17f55fc0be83b47a8e52286935d8f521afb
Do not use by default sRTP without a secure transport

darcs-hash:20100129214628-58252-4f093e7e0e41f50b9cfe95c8444d159f25dc5c02