Added FAQ about Windows support and a troubleshooting item about DOM dependencies on the server.
Merge pull request #971 from zhouyaoji/docs_update_troubleshooting

[doc] Added FAQ about Windows support and a troubleshooting item about DOM dep...
Updated 'yui.config' table to include properties for controlling the combo URL, allowing to specify static assets, and an explanation of the 'seed' property.
Fixing code formatting in table.
Fixing code formatting in table.
Explained that the 'seed' array can also specify URLs to the YUI CDN, so the client can load YUI.
Stated that the 'seed' array can specify to URLs for the YUI seed.
Created sections for loading seed from YUI/CDN from client and for showing how to use the version of YUI bundled with application.
Corrected role ':emphasize-lines:'.
Removed role ':emphasized-lines:' because it's preventing code blocks from being displayed on GH.
Made copy edits.
Reordered the information about client loading and specifying a version of YUI.
Restructured documentation for configuring application for serving YUI and updated yui.conf.