update git-book for latest docs
configuration reference doc update
API doc update
Updating gitbook with the latest commit 2f70d17f12f59caa421cd42b6ee52db322220fa5.
Versioning the user doc.
Trying out symbolic link for current doc.
Revert "Trying out symbolic link for current doc."
* This reverts commit 469103ed7fd5973a4a986fe7955acdadea900917.
* Git doesn't traverse symlinks.