[TIDOC-1490] 1.4.0 Release Notes
[TIDOC-1490] Address PR comments
[TIDOC-1490] Fix typo
Merge branch 'master' of https://github.com/appcelerator/alloy into tidoc-1490

Conflicts:
	CHANGELOG.md
[TIDOC-1490] Add Widget deprecation message
Merge pull request #405 from bhatfield/tidoc-1490

[TIDOC-1490] 1.4.0 Release Notes