move defaults.c decls. to their own header

completing_read: take tab pointer instead of id

move pages decl. to their own header

flush imsg buffer before quitting this ensures that all the pending messages, such as the two IMSG_QUIT, but limiting to them, are actually sent. This unbreaks save_session too.

refactor: all imsgs are completely asynchronous

(process) network -> net rename

move ui decl. to ui.h

move parser declarations so parser.h

fix certificate mismatch after load_previous_page and proxy load_previous_page calls directly do_load_url, where the proxy reset happens in load_url.

initialize tabshead and proxylist early after the re-exec diff, the configuration gets loaded *before* and then the proxy list is initialized. Thus once we start the UI the proxy list is always empty. Solve the headaches by using TAILQ_HEAD_INITIALIZER. Or, in theory we could also avoid the initialization at all, since globals vars should be zeroed.

re-exec the children processes This way, they get their own new random address space.

style(9)

initialize the keys before reading the configuration

move the argv handling back into the main()

fix two related bug Don't crash when there's a certificate mismatch and after saving the cert, before choosing to persist it, the page gets redirected; also, don't repeat the "Certificate mismatch" after the first yes, if there's a redirect. Now when the user accept a certificate, is treated as temporary saved for the whole session.