upgrade Gemfile.lock
remove deleted files
Adding new files.
updating javascript code
update html code.
fix css location
encapsulate default page into container page
Adding line numbers to pretty print
working layout for articles
change out link for new button
removed the use of options parse block html in content files.
fix styling issue for articles that footer depended on
convert most articles layout and toc
convert web-ui articles
revert the article button
adding editor build rev integration class
adding floating affix
convert books layout to bs3
change the default layout
convert tools/index.html to bs3