reorganised static and virtualenv

.gitignore

core/static/lib/css/bootstrap.min.css

core/static/lib/css/codemirror.css

core/static/lib/css/custom.css

core/static/lib/css/dialog.css

core/static/lib/js/bootstrap.min.js

core/static/lib/js/codemirror.js

core/static/lib/js/dialog.js

core/static/lib/js/jquery-3.1.1.min.js

core/static/lib/js/searchcursor.js

core/static/lib/js/vim.js

core/templates/base.html