Fix issue with webpack 4#4

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kopax wants to merge 3 commits intolwd-technology:masterfrom

Commits on Jan 14, 2019

fix(webpack): allow webpack 3 and 4
Dimitri Kopriwa
committed
fix(webpack): allow webpack 3 and 4
Dimitri Kopriwa
committed
fix(define-plugin): fixed defined-plugin, moving webpack in peerDependencies and devDependencies, allowing webpack >= 3.6.0 || >= 4.0.0
Dimitri Kopriwa
committed