iOS / asi-http-request

Add back in Snow Leopard detection for deciding whether to spawn a new thread
Made delegate authentication work again in a background thread
Tweak tests

Expand explanation on delegate selectors
Thanks to Christoph Ludwig for noting these issues!

Conflicts:
	Classes/ASIHTTPRequest.m

Change ASIInputStream to remove hacky workaround, it's now just a proxy that records the data sent

Conflicts:
	Classes/ASIHTTPRequest.m
	Classes/Tests/ASIHTTPRequestTests.h

This highlights the performance disparity between NSURLConnection and ASIHTTPRequest, which we need to solve :)

Fix throttling
Tweak iPhone sample to show throttle status

Reachability class version set by user with a config switch, rather than using the extra class to do detection at runtime.
Move this config option and ASIHTTPRequest_DEBUG into a new config file
Tweak iPhone sample to show bandwidth / wwan status, just for my benefit in testing
Include both versions of reachability

[#31 state:resolved]

Stop running runloop in checkRequestStatus, it's not nescessary and it meant we were updating progress every 0.5 secs rather than every 0.25 secs
Remove authenticationLock, delegate-style auth is now non-blocking
Requests on standard run loop

… a queue, but not on snowleopard

…com/post/237349423/hoseyifyxcodewarnings-scpt
(Thanks to lhunath for the idea - http://github.com/lhunath/asi-http-request/commit/d28fe4062bc2bb665e3d5828e2266584800f30d2)

Made some changes to fix warnings
Have disabled some settings, may re-enable in future:
* Need formal protocols for delegates, as per llunath's fork
* Should consider renaming S3 methods to prevent the clang warnings

Fixed another issue with test breakage on Mac

Added delegate method tests
Thanks to Lu for the code!

Also, fixed progress tests on Mac OS, broken as a result of the recent fix relating to setMaxValue: for iPhone

Hopefully this will prevent App Store rejections based on the use of setMaxValue:

…eue that is already running

…AD request for dynamic content and accepting gzip
More work on progress tests