Merge pull request #416 from federico1525/ALOY-1028

[Aloy 1028] platform attribute with comma-separated string
update changelog
Merge branch '1_4_X' of https://github.com/appcelerator/alloy into 1_4_X
format fix for changelog
fix link to ticket in changelog
[ALOY-1035] Themes: asset images not applied as expected
[ALOY-1038] Conditionals with negation not working
fix 1.4.0-beta label
1.4.0-beta2
[TIDOC-1721] Deprecate sample widgets
Merge pull request #433 from bhatfield/tidoc-1721-1_4_X

[TIDOC-1721](1_4_X) Deprecate sample widgets
[TIDOC-1490] 1.4.0 Release Notes

Conflicts:
	CHANGELOG.md
[TIDOC-1490] Address PR comments
[TIDOC-1490] Fix typo
Making headings consistent across all release notes.

Conflicts:
	CHANGELOG.md
[TIDOC-1490] Add Widget deprecation message
[TIDOC-1490] Fix headers
[ALOY-1046] Fixed bug where the initial state of the buttongrid was never computed before being re-layed out because Mobile Web uses a timer to do the rendering. By adding a setTimeout(), we allow Mobile Web to compute the layout of the newly added elements before triggering the animation.
Merge pull request #436 from cb1kenobi/aloy-1046_1_4_X

[ALOY-1046] Fixed bug where the initial state of the buttongrid was never...
Merge pull request #434 from bhatfield/tidoc-1490-1_4_X

[TIDOC-1490](1_4_X) 1.4.0 Release Notes