fixed example trees
fixed typo
Merge pull request #596 from neyasov/master

fixed typo
fixed typo in Changes file
improved Mojo::IOLoop::Delay to allow more method chaining
more delay tests
improved WebSocket and long poll performance
fixed RFC 7159 support in Mojo::JSON
fixed RFC 7159 compliance bugs in Mojo::Transaction::WebSocket and Test::Mojo
use values instead of data structures in descriptions
improved trim performance a little (closes #599)
documentation tweak
fixed typo
fixed another typo
use encode_json instead of j in examples
explain what an undef return value means
documentation tweak
link to error attribute
bring back test for surrogate pair
test invalid bareword