Update eslint to version 2.6.0 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

eslint just published its new version 2.6.0, 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 :palm_tree:

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The new version differs by 1133 commits .

• 96644d4 2.6.0
• 0842dd5 Build: package.json and changelog update for 2.6.0
• 62a63c9 Merge pull request #5762 from olmokramer/olmokramer-export-vars-on-top
• ce2accd Fix: vars-on-top now accepts exported variables (fixes #5711)
• 671e73c Merge pull request #5624 from eslint/prefer-const/mixed-option
• 0124c87 Merge pull request #5755 from onurtemizkan/no-useless-escape/adding-B-escape
• 98523c9 Merge pull request #5743 from vitorbal/max_option
• 7aacba7 Update: Deprecate optionmaximumin favor ofmax(fixes #5685)
• 5fe6fca Fix: no-useless-escape \B regex escape (fixes #5750)
• 9b73ffd Update:destructuringoption ofprefer-construle (fixes #5594)
• e54598a Merge pull request #5706 from isaacl/master
• 2bb8486 Merge pull request #5747 from eslint/issue-5745
• ed307d0 Merge pull request #5753 from eslint/docs-sort-imports
• 8ac9206 Docs: Typo insort-imports``
• 12902c5 Fix: valid-jsdoc crash w/ Field & Array Type (fixes #5745) (fixes #5746)

There are 250 commits in total. See the full diff.

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