test reserved stash values
use transliteration when possible
improved Mojo::Reactor::EV responsiveness
updated EV requirement to 4.15 for certain bug fixes
recurring timers cannot be zero in EV
added next_tick method to Mojo::IOLoop and Mojo::Reactor
fixed timer documentation
test next_tick return value
added host_port method to Mojo::URL
added path_query method and fixed a few request generation bugs
reuse user agent from application for one-liners
added is_handshake method to Mojo::Message::Request
simplify Mojo::Base tests
a few more path_query tests
added class hierarchy to guides
fixed a few errors in the class hierarchy
use square list style
better description for Mojo
fixed example trees
fixed typo