Fix #6661. Configurable multiple linters.
Add testcase for non-existance provider.

Test that non-existing provider, preferredOnly = true and firstOnly =
true.
Add test case for when prefer is not specified.

Also, change single-quote to double-quotes for string literals.
Merge remote-tracking branch 'upstream/master' into kai/fix-6661-multi-linters

Conflicts:
	src/language/CodeInspection.js
	test/spec/CodeInspection-test.js
Merge remote-tracking branch 'upstream/kai/fix-6558-language-layer' into kai/fix-6661-multi-linters
Merge remote-tracking branch 'upstream/kai/fix-6558-language-layer' into kai/fix-6661-multi-linters
Merge remote-tracking branch 'upstream/kai/fix-6558-language-layer' into kai/fix-6661-multi-linters
Use preferences with context.

Fix issues with logic.
Fix tests.
Do not unregister JSLint on another JS provider registration.

Remove corresponding tests. Clean up tests.
Configure Brackets to use JSLint and JSHint.
split svg into own language
define SVG MIME in Brackets
 Getting Started index.html For  | farsi|  Persian |  فارسیLanguage

Add  Getting Started index.html For  | farsi|  Persian |  فارسیLanguage
-------------------------------------------------------------------
صفحه ایندکس اچ تی ام ال برای زبان فارسی در زمان لود براکتس به زبان فارسی
Add Css

add RTL Css for Farsi | Persian |فارسی
Add  Demo quick-edit for Farsi

Image for farsiquick-edit
Updat for add Getting Start for Farsi | Persian | فارسی Language

Updet for add Getting Start for Farsi | Persian | فارسی Language
Full Farsi | Persian |فارسی  translation for Brackts 1.0.

Full Farsi | Persian |فارسی  translation for Brackts 1.0.
----------------------------------------------------------
بروز رسانی ترجمه کامل فارسی برای براکتس نسخه 1.1
-------------------------------------------------------------
این  فایل از ترجمه قبلی آقای محمد یعقوبی استفاده کرده است.
Revert "Full Farsi | Persian |فارسی  translation for Brackts 1.0."

This reverts commit 12892b57bab53a8ee7863be6f17b7ce726694e95.
Merge remote-tracking branch 'upstream/master' into kai/fix-6661-multi-linters

Conflicts:
	src/language/CodeInspection.js
	test/spec/CodeInspection-test.js