cherry-pick. WP-1009: restructuring.
cherry-pick. WP-1009. Rebase WP-1031.
WP-1009. Made a patch for webinos-pzp and webinos-widget.
cherry-pick. WP-1009: Removed projects app, wrt and installer.
wp-1009: Rebase WP-1029.
wp-1009: Removed the temporary folder tmp.
WP-1009. Updated README.md and formatted build.xml
WP-1009. Minor wording updates on README.md
Merge pull request #12 from gguowei/wp-1009-resolve-conflicts

WP-1009. Restructured.