Upgrade to file-loader 4.2.0

• Merge branch 'master' of https://github.com/bhovhannes/svg-url-loader 968c65b
• chore(deps): update dependency sass-loader to v7.3.1 c827653
• chore(deps): update dependency less to v3.10.3 52c837a
• chore(deps): update dependency less to v3.10.1 e617a06
• chore(deps): update dependency less to v3.10.0 a520b7d
• chore(deps): update dependency webpack to v4.39.2 39ed2f1
• chore(deps): update dependency jest to v24.9.0 4f452af
• fix(deps): update dependency file-loader to v4.2.0 59083e0
• chore(deps): update dependency sass-loader to v7.2.0 3fdd35e
• chore(deps): update dependency css-loader to v3.2.0 f6bc633
• chore(deps): update dependency webpack to v4.39.1 b4a8ca9
• chore(deps): update dependency webpack to v4.38.0 00bca31
• fix(deps): update dependency file-loader to v4.1.0 cf857b6
• chore(deps): update dependency webpack to v4.36.1 d299841
• chore(deps): update dependency css-loader to v3.1.0 42261f2
• chore(deps): update dependency webpack to v4.35.3 df5a4d0
• chore(deps): update dependency webpack to v4.35.2 c09d4b8

v3.0.0...v3.0.1