Configuration reloading does not refresh all elements

[alexander-bauer]

Though the Conf global variable is refreshed on SIGHUP, not all elements that depend on it are, including:

• Static directory (res/)
• Email templates (res/email/)
• Database connection Db
• HTTP server bind address

[lukevers]

@SashaCrofter could running RegisterTemplates() within the os signal switch statement reload the templates? I've tested it out and I get no errors, but I can't test it for the emails being different since I don't have a mail server currently set up.