Integrate Building System

[chigix]

Problem: Current Angular Library Packager does not cover bundling scss theming file:

https://github.com/chigix/rengular/blob/master/projects/primitive/src/_theming.scss

, for which it seems a smart and systematic workflow including the building becomes necessary for rengular packages.

Some candidates in consideration:

• Gulp
• Bazel

[chigix]

Push version information from npm label and git tag into app site's footer.