Support package.json i18n key and show a hint in case the extension is translated into the users language
Code review changes, LocalizationUtils
Unit tests
Merge remote-tracking branch 'upstream/master' into i18n-extman

Conflicts:
	src/utils/StringUtils.js
Show a message even if the ext wasn't translated into user's lang
Stylesheet change
Merge remote-tracking branch 'upstream/master' into i18n-extman
Changed string
Added logic to only process theme prefs events only when there is a theme selection.  Also changed ThemeManager around so that the style nodes for themes are reused. Update jsdoc
Added logic to only process theme prefs events only when there is a theme selection.  Also changed ThemeManager around so that the style nodes for themes are reused. Update jsdoc
Merge branch 'themes-8457' of https://github.com/MiguelCastillo/brackets into themes-8457
Merge pull request #7995 from SAPlayer/i18n-extman

Support package.json i18n key and show a hint in case the extension is t...
Merge pull request #8459 from MiguelCastillo/themes-8457

[Themes] Logic to reuse theme style node