1.0 release

[antoyo]

• Develop a GUI functional testing crate #7
• Clean-up the examples #103
• Base relm-test on gtk-test #122
• Consider a better way to distinguish between GTK+ and relm widgets in the view! macro #20
• Assignment to model does not update the view #44
• Better syntax error messages #43
• Compiler warnings #247
• Who manages the lifetime of components? #127
• Add a client/server example #11
• Refactor README code examples #81
• Write a tutorial #26
• Fuzzing tests for the view! macro #105
• Add examples screenshots #56
• Example with custom drawing? #57
• Allow using CSS in or outside view #25
• Support gtk::Gesture in view! macro #42
• Support glade #14
• Add comments to explain what the examples did #18
• Add support for menus #54
• Support custom titlebars #84
• Some widgets may require a call to show_all instead of show #68
• gtk properties can only have one argument using attributes #59
• Unused warnings should not show up in the buttons-derive example #33
• Think about how to avoid having to write wrapper methods for gtk properties of relm widget #35
• Warning if the update() method is called often in a short amount of time #36
• Have connect! return the signal handler id #46
• Consider lowering the 200ms to 16ms for the warnings #28
• Remove SimpleMsg #12
• Make the generated field names for the generated struct harder to guess #8
• Reset the counters for the generated widget names #10
• Trait default implementations #66
• Remove duplication between gtk-test and relm-test #246
• Mismatched gtk-rs version causes a long compiler error #226
• Dropping a cloned component closes the stream #218
• Two syntaxes for event connect #194
• Create Dialog Relm Widget #158
• Provide a prelude module #69
• Weird custom attribute panick #97
• Test on every crate depending on relm. (Edit: not sure it's worth it because we break compatibility anyway.)