[editing] Change name of contentEditable=typing to contentEditable=intent (#60)

Besides the name change, this means that 

a) There will not be any caret movement, which closes issue https://github.com/w3c/editing/issues/58

b) There will not be any automatic change to the DOM structure through user input. This means that IME inline text input will be handled without making any changes to the DOM structure (ShadowDom or similar), which closes issue https://github.com/w3c/editing/issues/57 .

c) overtype mode will be implemented entirely in userspace, which closes issue https://github.com/w3c/editing/issues/55

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Reply to this email directly or view it on GitHub:
https://github.com/w3c/editing/issues/60