actix-ws: v0.3.0

• Add AggregatedMessage[Stream] types.
• Add MessageStream::max_frame_size() setter method.
• Add Session::continuation() method.
• The Session::text() method now receives an impl Into<ByteString>, making broadcasting text messages more efficient.
• Remove type parameters from Session::{text, binary}() methods, replacing with equivalent impl Trait parameters.
• Reduce memory usage by take-ing (rather than split-ing) the encoded buffer when yielding bytes in the response stream.