iOS / asi-http-request

Cancellation ends up addressing runloop objects and CF objects (and also accesses the runloop for the current thread), at least some of which will only work on the thread the request is running on.

For example, cancel calls cancelLoad which calls destroyReadStream which needs to access the runloop for the request for this:

[[self readStream] removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:[self runLoopMode]];

It seems that notifying the NSOperationQueue we're complete before we start running causes a problem resulting in a crash.

Hence, we avoid calling markAsFinished unless we're inprogress - main() will call it when we do start.

This can be used by clients to alter or inspect the queue.

The most obvious use for this is calling setMaxConcurrentOperations: on the queue to alter the number of simultaneous requests that will be made over the network.

Tweaks to fix more LLVM warnings

…f the delegate was removed before we called it.

(The cache only stores 200 response codes.)

The client can still check if the cache was used or not by checking 'didUseCachedResponse'.

It is not safe to call retain on these objects unless we're on the main thread, as the main thread could have already started a dealloc() (but not reached the setDelegete:nil call) on the object when retain is called, potentially resulting in an object that is both retained and dealloced.

The previous mechanism can end up calling a delegate that has been removed by a setDelegate:nil, and hence may already be deallocated.

Now we run a callback on the mainthread, which only dereferences the delegate/queue and selectors to be called when it runs on the main thread.

The authenticationdelegate code is still using the old method. This should be looked at separately; it is slightly more complex as it needs to know if a delegate exists to be called.

Conflicts:
	Classes/ASIHTTPRequest.m

Closes gh-66

Add tests for same

…, and seems to be more reliable on iOS3 device
Fix deprecated warning in ASIDownloadCache
Tweaks to sample iphone app - rotation fixes, remove bandwidth use bar for now

…r does this keep getting broken?

…an asiauthenticationdialog
Tweak authentication sample to ensure response text field is loaded in advance - this ensures the response always shows up

…ntent-length header during redirection
Add test for same
Tweaks

…method to POST if nescessary
Closes gh-57

Dismiss auth dialog

Import UIKit in ASIAuthenticationDialog
Add new reachability class
Tweak license to mention new reachability class
Tweaks

* Tweak cancel stress test to make it more likely to catch above issue
* Use an empty CFRunLoopSource instead of a timer to keep request thread runloop from exiting
* Only run the version numbering script if git is available at the path the script expects
* Tweaks

Stop dismissing dialog from request - doesn't make sense because the request doesn't own it

Add new isNetworkInUse class method that works on Mac too

Merge branch 'new-queue-threading-model' into v1.7

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

Conflicts:
	Classes/ASIHTTPRequest.m
	Classes/Tests/ASIHTTPRequestTests.m
	Mac.xcodeproj/project.pbxproj
	iPhone.xcodeproj/project.pbxproj

Conflicts:
	Classes/ASIHTTPRequest.m
	Classes/ASIHTTPRequestConfig.h
	iPhone.xcodeproj/project.pbxproj