Release Improvements in serde and async · tafia/quick-xml

What's Changed

#541: (De)serialize specially named $text enum variant in externally tagged
enums to / from textual content
#556: to_writer and to_string now accept ?Sized types
#556: Add new to_writer_with_root and to_string_with_root helper functions
#520: Add methods BytesText::inplace_trim_start and BytesText::inplace_trim_end
to trim leading and trailing spaces from text events
#565: Allow deserialize special field names $value and $text into borrowed
fields when use serde deserializer
#568: Rename Writter::inner into Writter::get_mut
#568: Add method Writter::get_ref
#569: Rewrite the Reader::read_event_into_async as an async fn, making the future Send if possible.
#571: Borrow element names (<element>) when deserialize with serde.
This change allow to deserialize into HashMap<&str, T>, for example
#573: Add basic support for async byte writers via tokio's AsyncWrite.

#537: Restore ability to deserialize attributes that represents XML namespace
mappings (xmlns:xxx) that was broken since #490
#510: Fix an error of deserialization of Option<T> fields where T is some
sequence type (for example, Vec or tuple)
#540: Fix a compilation error (probably a rustc bug) in some circumstances.
Serializer::new and Serializer::with_root now accepts only references to Writer.
#520: Merge consequent (delimited only by comments and processing instructions)
texts and CDATA when deserialize using serde deserializer. DeEvent::Text and
DeEvent::CData events was replaced by DeEvent::Text with merged content.
The same behavior for the Reader does not implemented (yet?) and should be
implemented manually
#562: Correctly set minimum required version of memchr dependency to 2.1
#565: Correctly set minimum required version of tokio dependency to 1.10
#565: Fix compilation error when build with serde <1.0.139

Full Changelog: v0.27.1...v0.28.0