model: Add getArchitecture() and deps to get it working
gui: Implement refresh (although with segv at the moment)
cgi-server: Pass current architecture and handle it
unit test: html-generator: Check unset environment
unit test: html-generator: Check output ordering
html-generator: Uppercase Unknown
unit test: cgi-server: Add test for HTML generation

Also provide a server fixture to avoid the HTML stats being
overwritten.