Commit Briefs
proxy: allow multiple proxy blocks, matching options and validations
as a side effect the order of the content of a server block is relaxed: options, location or proxy blocks can be put in any order.
plug some memory leaks in config parsing
I forgot to free some strings when they're no more used.
simplify the proxying code
it doesn't make any sense to keep the proxying info per-location: proxying only one per-vhost. It can't work differently, it doesn't make sense anyway.