Update eslint to version 2.3.0 🚀

[greenkeeperio-bot]

Hello 👋

🚀🚀🚀

eslint just published its new version 2.3.0, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of eslint – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging 🌴

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GitHub Release

• 1b2c6e0 Update: Proposed no-magic-numbers option: ignoreJSXNumbers (fixes #5348) (Brandon Beeks)
• 63c0b7d Docs: Fix incorrect environment ref. in Rules in Plugins. (fixes #5421) (Jesse McCarthy)
• 124c447 Build: Add additional linebreak to docs (fixes #5464) (Ilya Volodin)
• 0d3831b Docs: Add RuleTester parserOptions migration steps (Kevin Partington)
• 50f4d5a Fix: extends chain (fixes #5411) (Toru Nagashima)
• 0547072 Update: Replace getLast() with lodash.last() (fixes #5456) (Jordan Eldredge)
• 8c29946 Docs: Distinguish examples in rules under Possible Errors part 1 (Mark Pedrotti)
• 5319b4a Docs: Distinguish examples in rules under Possible Errors part 2 (Mark Pedrotti)
• 1da2420 Fix: crash when SourceCode object was reused (fixes #5007) (Toru Nagashima)
• 9e9daab New: newline-before-return rule (fixes #5009) (Kai Cataldo)
• e1bbe45 Fix: Check space after anonymous generator star (fixes #5435) (alberto)
• 119e0ed Docs: Distinguish examples in rules under Variables (Mark Pedrotti)
• 905c049 Fix: no-undef false positive at new.target (fixes #5420) (Toru Nagashima)
• 4a67b9a Update: Add ES7 support (fixes #5401) (Brandon Mills)
• 89c757d Docs: Replace ecmaFeatures with parserOptions in working-with-rules (Kevin Partington)
• 804c08e Docs: Add parserOptions to RuleTester section of working-with-rules (Kevin Partington)
• 1982c50 Docs: Document string option for no-unused-vars. (alberto)
• 4f82b2b Update: Support classes in padded-blocks (fixes #5092) (alberto)
• ed5564f Docs: Specify results of no-unused-var with args (fixes #5334) (chinesedfan)
• de0a4ef Fix: getFormatter throws an error when called as static (fixes #5378) (cowchimp)
• 78f7ca9 Fix: Prevent crash from swallowing console.log (fixes #5381) (Ian VanSchooten)
• 34b648d Fix: remove tests which have invalid syntax (fixes #5405) (Toru Nagashima)
• 7de5ae4 Docs: Missing allow option in docs (Scott O'Hara)
• cf14c71 Fix: no-useless-constructor rule crashes sometimes (fixes #5290) (Burak Yigit Kaya)
• 70e3a02 Update: Allow string severity in config (fixes #3626) (Nicholas C. Zakas)
• 13c7c19 Update: Exclude ES5 constructors from consistent-return (fixes #5379) (Kevin Locke)
• 784d3bf Fix: Location info in dot-notation rule (fixes #5397) (Gyandeep Singh)
• 6280b2d Update: Support switch statements in padded-blocks (fixes #5056) (alberto)
• 25a5b2c Fix: Allow irregular whitespace in comments (fixes #5368) (Christophe Porteneuve)
• 560c0d9 New: no-restricted-globals rule implementation (fixes #3966) (Benoît Zugmeyer)
• c5bb478 Fix: constructor-super false positive after a loop (fixes #5394) (Toru Nagashima)
• 6c0c4aa Docs: Add Issue template (fixes #5313) (Kai Cataldo)
• 1170e67 Fix: indent rule doesn't handle constructor instantiation (fixes #5384) (Nate Cavanaugh)
• 6bc9932 Fix: Avoid magic numbers in rule options (fixes #4182) (Brandon Beeks)
• 694e1c1 Fix: Add tests to cover default magic number tests (fixes #5385) (Brandon Beeks)
• 0b5349d Fix: .eslintignore paths should be absolute (fixes #5362) (alberto)
• 8f6c2e7 Update: Better error message for plugins (refs #5221) (Nicholas C. Zakas)
• 972d41b Update: Improve error message for rule-tester (fixes #5369) (Jeroen Engels)
• fe3f6bd Fix: no-self-assign false positive at shorthand (fixes #5371) (Toru Nagashima)
• 2376291 Docs: Missing space in no-fallthrough doc. (alberto)
• 5aedb87 Docs: Add mysticatea as reviewer (Nicholas C. Zakas)
• 1f9fd10 Update: no-invalid-regexp allows custom flags (fixes #5249) (Afnan Fahim)
• f1eab9b Fix: Support for dash and slash in valid-jsdoc (fixes #1598) (Gyandeep Singh)
• cd12a4b Fix:newline-per-chained-call should only warn on methods (fixes #5289) (Burak Yigit Kaya)
• 0d1377d Docs: Add missing symbol type into valid list (Plusb Preco)
• 6aa2380 Update: prefer-const; change modified to reassigned (fixes #5350) (Michiel de Bruijne)
• d1d62c6 Fix: indent check for else keyword with Stroustrup style (fixes #5218) (Gyandeep Singh)
• 7932f78 Build: Fix commit message validation (fixes #5340) (Nicholas C. Zakas)
• 1c347f5 Fix: Cleanup temp files from tests (fixes #5338) (Nick)
• 2f3e1ae Build: Change rules to warnings in perf test (fixes #5330) (Brandon Mills)
• 36f40c2 Docs: Achieve consistent order of h2 in rule pages (Mark Pedrotti)

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[kumar303]

holding off on this until eslint/eslint#5476 is fixed