LookingGlass v1.3.0

It was brought to my attention last week that an RDNS XSS could exploit LookingGlass. As it turns out, illegal characters are not filtered on a lower level (as RFC1034 would suggest).
LookingGlass was vulnerable as it simply outputs the contents from a terminal. The fix applied uses htmlspecialchars() to filter stdout from terminal.

• Fix RDNS XSS
• Fix ' ' being escaped by temporary patch (SHA a421a8e)
• Fix 'REQUEST_URI' XSS (URL is now hard-coded via config)
• Catch error when using IPv6 hostname with IPv4 command, and vice versa
• Added .htaccess (fixes readable subdirectory)
• Added sample Nginx configuration (fixes readable subdirectory)
• GNU shred to create test files (fixes gzip and ssl compression)
• Update configure.sh (add site url, sudo for centOS, and user:group chown)
• Update cerulean and united to Bootstrap v2.3.2
• Update readable and spacelab to Bootstrap v2.2.1
• Update Jquery to v1.11.2
• Update XMLHttpRequest.js