v1.2.1 20180709

v1.2.0...v1.2.1

• bump up to v1.2.1 (#725)
• Fix/crowdin install (#732)
• polling must not stop if _vwo_exp_ids is undefined (#724)
• chore(deps): update dependency webpack to v4.15.0 (#723)
• upgrade modules (#717)
• fix gtm container ID (#722)
• fix(deps): update dependency @types/react-router to v4.0.28 (#719)
• chore(deps): update dependency uglify-js to v3.4.3 (#720)
• Refactor npm scripts (#721)