Add support for close-all-others
sign cla
Add support for close-all-others
Change names to tw=close-other-tiddlers and handleCloseOtherTiddlersEvent
Merge branch 'closeAllOthers' of https://github.com/grayeul/TiddlyWiki5 into closeAllOthers

Conflicts:
	core/modules/widgets/navigator.js

merging namechange.
Fixed missing reference to old CloseAllOthers
Remove close-others-button from core/images
Make sure that searching for the empty string returns all available tiddlers

Makes sense because every tiddler contains the empty string. This
restores the functionality of the tag editor dropdown.
Make sure we use state tiddler titles in the `$:/state` namespace
Fixed problem with target fields/index being erroneously applied to template

See here for discussion:

https://groups.google.com/d/msg/TiddlyWiki/D3MBNhjaT3E/ph0ZuAhuPFMJ
Merge pull request #214 from grayeul/sign-cla2

CLA signature from @grayeul
Merge pull request #212 from grayeul/closeAllOthers

Add support for close-others
Fixed typo from d64590a12bf25c398145b128b40aa8865f908a83