* RRD Graph optimization
Do not use temporary files to generate graphs
Don't start up a process to pipe commands to, just run the command
Error image improvements
* fix style issues
* Security fix: unauthorized access
Affects nginx users:
Moved php files outside of public html directory (Apache was protected by .htaccess)
Affects all users:
Some files did not check for authentication and could disclose some info.
Better checks before including files from user input
* git mv html/includes/ includes/html
git mv html/pages/ includes/html/