Update dependency stylelint to version 7.8.0

[keylocation-bot]

This Pull Request updates dependency stylelint from version 7.7.1 to 7.8.0

Changelog

7.8.0 / 2017-02-02

• Prepare 7.8.0
• Update changelog
• Add rule-empty-line-before rule (#2309)
• Put back links to deprecated rules (#2313)
• Use HTTPS links where applicable. (#2311)
• Prepare CHANGELOG and release planning (#2299)
  • Prepare CHANGELOG
• Update CHANGELOG.md
• Add fr to known units (#2308)
  Closes #2307
• Remove tape testRule leftover (#2306)
• Use fenced code blocks
• Use https://stylelint.io everywhere
• Standardise deprecation notes and warnings (#2300)
• Improve documentation of "always-multi-line" in at-rule-name-newline-after (#2304)
• Revert deprecation of stylelint-commands option (#2302)
• Deprecate rules (#2197) (#2298)
• Add "time-min-milliseconds" rule (#2289)
  • Add "time-min-milliseconds" rule
  • Fix warnings if time is equals to config time
  • Fixes based on a feedback
  • Fix typo
  • Check only positive numbers
• Fix max-line-length column incorrect column (#2287)
  • Add a failing test for issue #2286
  • Fix max-line-length column number for lines with urls
    Closes #2286
• Fix extends in configOverrides (#2295)
  Closes #2280
• Add `@import` tests for `max-line-length` rule (#2221)
• Expand configuration object docs (#2290)
• Setup ESLint for local caching (#2284)
  • Setup ESLint caching
  • Don't cache ESLint for Travis CI
• Update invalid rule options in system test 005 (#2283)
  • Update Invalid Option for "value-no-vendor-prefix" rule in system test 005
  • Update Invalid Option for "selector-pseudo-element-no-unknown" rule in system test 005
  • Update system test 005 snapshot
• minor/added trailing comma to the end of the type declaration; (#2282)
• chore(package): update eslint to version 3.14.0 (#2279)
  https://greenkeeper.io/
• Fix mixed-content issue in readme
• Upgrade Flow (#2277)
• Use unescaped regex in string (#2276)
• Added milestones and issue search links to the issue template (#2258)
  • Added link to v8 changelog in the issue template
  • add milestone and search links to issue template
• Add proprietary webkit pseudo-classes to list of known ones in selector-pseudo-class-no-unknown. (#2264)
• Update release planning doc for 8.0.0 (#2250)
  Closes #2205
• Document warning for standard values in no-vendor-prefix (#2248)
  • Document warning for standard values in no-vendor-prefix
    Closes #2203
  • Fix lint warnings
• Update no-unknown-animations docs (#2244)
  • Use a more openly subjective criteria
  • Make description of no-unknown-animations consistent with other rules
• chore(package): update eslint to version 3.13.0 (#2238)
  https://greenkeeper.io/
• Add except: ["after-same-name"] option to at-rule-empty-line-before #2211 (#2225)
• Patch absolute paths in README
  Closes #2242
• Typo Correction (#2234)
  "after after" –> "space after"
• Typo Correction (#2235)
  "... single before after the operator." –> "... single space before the operator."