chore(bower): add `angular-material` dependency
chore(gulp): split vendor into scripts and stylesheets

Update `gulpfile` and `watch`
feat(angular-material): add `angular-material`

Add all related dependencies
Add `vendor.css`
Update `meta` tag
style(index): clean up Jade syntax
Merge pull request #1 from ilyakam/feature/material

Add angular-material module and all related dependencies