feat(build): src dist without sourcemaps

chore(release): v2.2.8

2.2.7

2.2.6

2.2.5

2.2.4

2.2.3

2.2.2

updated package.json for npm module

Merge pull request DmitryBaranovskiy#1044 from DmitryBaranovskiy/webpack

Webpack and v2.2.0