New features

code & settings rebase.
Best way - reinstall module
or
- rebuild cache
- go to settings page & setup again

1. Fix the compatibility with the core 8.4.x releases
2. Update Bootstrap framework to version 3.3.7
3. Update Font Awesome library to version 4.7.0

1. Fix the compatibility with the core 8.4.x releases

1. Fix the compatibility with the final D8 stable release
2. Fixed issue #2906469
3. Fixed issue #2903598

1. Fix the compatibility with the final D8 stable release
2. Improve install configuration files