iOS / asi-http-request

Closes gh-107

Closes gh-102 (Many thanks to LeeMatthewHiggins for catching this)

More type conversion tweaks

Clang doesn't like local variables or parameter names that conflict with
instance property names. This problem occurs even in class methods (in
addition to instance methods).

Signed-off-by: Tim Shadel <github@timshadel.com>

…ns that crash the compiler.

Signed-off-by: Zachary Waldowski <zwaldowski@gmail.com>

Fix leak in iPad sample

Also change urls from my local machine to the asi website

Conflicts:
	Classes/ASIHTTPRequest.h
	Classes/ASIHTTPRequest.m
	iPhone Sample/QueueViewController.m
	iPhone Sample/SynchronousViewController.m
	iPhone Sample/UploadViewController.m

…ey haven't been set to nil since performBlockOnMainThread: was called

…the markAsFinished calls will cause requests to be deallocated

* Ask cache for responseData rather than reading directly from the cached file path when not downloading to disk

Fix blocks test

Small fixes to iPad sample

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

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

Fix exception in ASIWebPageRequest when not using a downloadDestinationPath and body is nil

…here available. This makes viewing cached local content in a web view work better
* Use xmlsave api to prevent libxml adding xml declaration to the generated html
* Add html5 audio tag, and video poster attribute to xpath query
* Prevent download of webm, ogg and ogv files
* Make accurate progress tracking work in iPhone sample

Fix progress views not showing up in iphone sample, and fix potential divide by zero
More comments to explain ASIWebPageRequest

Conflicts:
	Classes/ASICacheDelegate.h
	Classes/ASIDownloadCache.m
	Mac.xcodeproj/project.pbxproj
	iPhone.xcodeproj/project.pbxproj