tree bf672966872a171f6cb41b076b03586fe0c1b01f
parent 1bb44e776775636fdc34b5e88aad2a93651f4fe3
author Sijie Guo <sijieg@twitter.com> 1483912895 -0800
committer Sijie Guo <sijie@apache.org> 1483912895 -0800

DL-83: Add javadoc to website

- update the javadoc plugin to aggregate api by 'core library' and 'proxy service'. (turn some java class to package private and delete unused files. so they won't appear in java doc)
- improve the website build script to include javadoc
- update some readme files to include user mail list and slack channel

Author: Sijie Guo <sijieg@twitter.com>
Author: Sijie Guo <sijie@apache.org>

Reviewers: Leigh Stewart <lstewart@apache.org>

Closes #96 from sijie/sijie/merge_website_script