hexo-browsersync as alternative to hexo-server

[tcrowe]

After working with browsersync a bit more I realize it can take over the functionality of hexo-server while providing resource reloads without even refreshing sometimes.

This would be an enhancement and possibly a configuration change.

Resources:

• https://github.com/hexojs/hexo-server
• https://www.browsersync.io

[yoshinorin]

I found an interesting way in StackOverFlow.

https://stackoverflow.com/questions/36898508/how-to-use-hexo-server-draft-and-livereload/54872963#54872963

It seems may help us for enhance hexo-server :)