Update postcss-loader from 2.0.7 to 2.0.8 in app/vue

[dependencies]

postcss-loader has been updated to 2.0.8 in app/vue by dependencies.io

2.0.8

2017-10-14

Bug Fixes

• lib/options: handle {Object} return (options.plugins) (#301) (df010a7)
• schema: allow to pass an {Object} (options.syntax/options.stringifier) (#300) (58e9996)

[codecov]

Codecov Report

Merging #2046 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2046   +/-   ##
=======================================
  Coverage   21.34%   21.34%           
=======================================
  Files         262      262           
  Lines        5767     5767           
  Branches      692      693    +1     
=======================================
  Hits         1231     1231           
+ Misses       4003     3994    -9     
- Partials      533      542    +9

Impacted Files	Coverage Δ
addons/info/src/components/markdown/htags.js	30% <0%> (ø)	⬆️
addons/knobs/src/components/types/Object.js	5.81% <0%> (ø)	⬆️
addons/knobs/src/components/types/Color.js	8.1% <0%> (ø)	⬆️
...s/left_panel/stories_tree/tree_decorators_utils.js	45.23% <0%> (ø)	⬆️
addons/knobs/src/KnobStore.js	9.09% <0%> (ø)	⬆️
addons/storyshots/src/require_context.js	0% <0%> (ø)	⬆️
app/react/src/client/preview/error_display.js	0% <0%> (ø)	⬆️
addons/events/src/components/Event.js	0% <0%> (ø)	⬆️
lib/ui/src/modules/ui/configs/handle_keyevents.js	33.33% <0%> (ø)	⬆️
...ponents/left_panel/stories_tree/tree_decorators.js	33.33% <0%> (ø)	⬆️
... and 11 more

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