Unicorn 0.95.0 - we <3 Rainbows! and ponies too

Unicorn is a HTTP server for Rack applications designed to only serve
fast clients on low-latency, high-bandwidth connections and take
advantage of features in Unix/Unix-like kernels. Slow clients should
only be served by placing a reverse proxy capable of fully buffering
both the the request and response in between Unicorn and slow clients.

Changes:

Mostly internal cleanups and documentation updates. Irrelevant
stacktraces from client disconnects/errors while reading
“rack.input” are now cleared to avoid unnecessary noise. If
user switching in workers is used, ownership of logs is now
preserved when reopening worker logs (send USR1 only to the the
master in this case). The timeout config no longer affects long
after_fork hooks or application startups.

New features include the addition of the :umask option for the
“listen” config directive and error reporting for non-portable
socket options.

No ponies have ever been harmed in our development.

Eric W. (28):
unicorn.1: document RACK_ENV changes in 0.94.0
HACKING: update with “gmake” in examples
don’t nuke children for long after_fork and app loads
local.mk.sample: steal some updates from Rainbows!
Load Unicorn constants when building app
tee_input: fix RDoc argument definition for tee
Add FAQ
FAQ: fix links to Configurator docs
tee_input: better premature disconnect handling
tee_input: don’t shadow struct members
raise Unicorn::ClientShutdown if client aborts in TeeInput
tee_input: fix comment from an intermediate commit
FAQ: additional notes on getting HTTPS redirects right
configurator: update RDoc and comments in examples
bump version to 0.95.0pre
configurator: listen :umask parameter for UNIX sockets
preserve user/group ownership when reopening logs
old_rails/static: avoid freezing strings
old_rails: autoload Static
const: no need to freeze HTTP_EXPECT
test_server: ensure stderr is written to before reading
tee_input: expand client error handling
replace “rescue => e” with “rescue Object => e”
socket_helper: do not hide errors when setting socket options
socket_helper: RDoc for constants
ClientShutdown: RDoc
Rakefile: add raa_update task
tee_input: client_error always raises