Pin dependencies

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
autoprefixer	devDependencies	pin	^6.5.3 -> 6.7.5
babel-core (source)	devDependencies	pin	^6.23.1 -> 6.26.3
babel-eslint	devDependencies	pin	^7.1.1 -> 7.2.3
babel-loader	devDependencies	pin	^6.3.2 -> 6.4.1
babel-plugin-istanbul	devDependencies	pin	^4.0.0 -> 4.1.6
babel-polyfill (source)	devDependencies	pin	^6.23.0 -> 6.26.0
babel-preset-es2015 (source)	devDependencies	pin	^6.22.0 -> 6.24.1
basscss	dependencies	pin	^8.0.3 -> 8.0.3
basscss-addons	dependencies	pin	^1.0.0 -> 1.0.0
basscss-basic	dependencies	pin	^1.0.0 -> 1.0.0
basscss-responsive-margin	devDependencies	pin	^1.1.0 -> 1.1.0
basscss-responsive-padding	devDependencies	pin	^1.1.0 -> 1.1.0
basscss-responsive-type-scale	devDependencies	pin	^1.0.1 -> 1.0.1
child_process	devDependencies	pin	^1.0.2 -> 1.0.2
copy-webpack-plugin	devDependencies	pin	^4.0.1 -> 4.6.0
css-loader	devDependencies	pin	^0.26.1 -> 0.26.4
cssbeautify (source)	devDependencies	pin	^0.3.1 -> 0.3.1
cssnano	devDependencies	pin	^3.8.1 -> 3.10.0
deepmerge	devDependencies	pin	^1.4.4 -> 1.5.0
del	devDependencies	pin	^2.2.2 -> 2.2.2
es6-shim	devDependencies	pin	^0.35.3 -> 0.35.5
escape-html	devDependencies	pin	^1.0.3 -> 1.0.3
eslint (source)	devDependencies	pin	^3.15.0 -> 3.19.0
eslint-config-xo-space	devDependencies	pin	^0.15.0 -> 0.15.0
eslint-loader	devDependencies	pin	^1.6.1 -> 1.9.0
eslint-plugin-babel	devDependencies	pin	^4.0.1 -> 4.1.2
event-stream	dependencies	pin	^3.3.4 -> 3.3.5
extract-text-webpack-plugin	devDependencies	pin	^2.0.0-rc.3 -> 2.0.0-rc.3
firebase-admin (source)	dependencies	pin	~4.2.1 -> 4.2.1
firebase-functions	dependencies	pin	^0.5.7 -> 0.5.7
fs-extra	devDependencies	pin	^2.0.0 -> 2.1.2
gulp (source)	devDependencies	pin	^3.9.1 -> 3.9.1
gulp-help	devDependencies	pin	^1.6.1 -> 1.6.1
gulp-postcss	devDependencies	pin	^6.2.0 -> 6.3.0
gulp-posthtml	devDependencies	pin	^2.0.0 -> 2.0.0
gulp-rename	devDependencies	pin	^1.2.2 -> 1.2.2
gulp-replace	devDependencies	pin	^0.5.4 -> 0.5.4
gulp-webserver	devDependencies	pin	^0.9.1 -> 0.9.1
gulp-zip	dependencies	pin	^4.0.0 -> 4.2.0
highlights	devDependencies	pin	^3.1.1 -> 3.1.4
html-webpack-plugin	devDependencies	pin	^2.28.0 -> 2.30.1
jsdom	devDependencies	pin	^9.11.0 -> 9.12.0
json-loader	devDependencies	pin	^0.5.4 -> 0.5.7
karma (source)	devDependencies	pin	^3.1.1 -> 3.1.4
karma-chrome-launcher	devDependencies	pin	^2.2.0 -> 2.2.0
karma-mocha	devDependencies	pin	^1.3.0 -> 1.3.0
karma-webpack	devDependencies	pin	^2.0.2 -> 2.0.13
markdown-table	devDependencies	pin	^1.1.1 -> 1.1.3
minimist	devDependencies	pin	^1.2.0 -> 1.2.0
mocha (source)	devDependencies	pin	^5.2.0 -> 5.2.0
mocha (source)	devDependencies	pin	^3.5.0 -> 3.5.3
normalize.css (source)	dependencies	pin	^5.0.0 -> 5.0.0
path (source)	devDependencies	pin	^0.12.7 -> 0.12.7
postcss-calc	devDependencies	pin	^5.3.1 -> 5.3.1
postcss-color-function	devDependencies	pin	^2.0.1 -> 2.0.1
postcss-custom-media	devDependencies	pin	^5.0.1 -> 5.0.1
postcss-custom-properties	dependencies	pin	^5.0.1 -> 5.0.2
postcss-discard-comments	devDependencies	pin	^2.0.4 -> 2.0.4
postcss-loader	devDependencies	pin	^1.3.1 -> 1.3.3
posthtml-extend-attrs	devDependencies	pin	^1.0.0 -> 1.0.0
posthtml-include	devDependencies	pin	^1.1.0 -> 1.1.0
posthtml-inline-assets	devDependencies	pin	^2.0.0 -> 2.0.0
query-string	dependencies	pin	^5.0.0 -> 5.1.1
run-sequence	devDependencies	pin	^1.1.5 -> 1.2.2
style-loader	devDependencies	pin	^0.13.1 -> 0.13.2
vinyl	devDependencies	pin	^2.1.0 -> 2.2.0
webpack	devDependencies	pin	^2.2.1 -> 2.7.0
webpack-closure-compiler	devDependencies	pin	^2.1.5 -> 2.1.6
webpack-dev-middleware	devDependencies	pin	^1.10.1 -> 1.12.2
webpack-dev-server	devDependencies	pin	^3.1.10 -> 3.9.0
webpack-hot-middleware	devDependencies	pin	^2.17.0 -> 2.25.0
whatwg-fetch	dependencies	pin	^2.0.3 -> 2.0.4
worker-loader	devDependencies	pin	^0.8.1 -> 0.8.1

:pushpin: Important: Renovate will wait until you have merged this Pin PR before creating any upgrade PRs for the affected packages. Add the preset :preserveSemverRanges your config if you instead don't wish to pin dependencies.

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