iOS / asi-http-request

issue #263 - proposed patch

* Ensures external resource requests are properly removed from the queue and released when they fail
* Changes behaviour so that by default, external resource request failures do not cause everything else to fail

Also added new shouldIgnoreExternalResourceErrors property to control this

closes gh-253

Conflicts:
	Classes/ASIHTTPRequest.m

Fixed a typo + libxml is hidden from ASIWebPageRequest header

Small fix to remove C++ compile errors.

Format string fixes and memory leak fixes.

bandwith / bandwidth issue

see ASIHTTPRequestConfig.h for additional information

when compiling with objective-c++.

CopyWithZone did not copy authenticationScheme

Conflicts:
	Classes/ASIHTTPRequest.m

…ages with a .html extension
This will help users that need to cache HTML content for display in a webview
closes gh-241

Small fix to the bandwidth throttler.

incorrectly charging the entire buffer size against the throttler
rather than just the number of bytes actually read.

For example, if you did a read with a 32KB buffer which only received
300 bytes across the wire, the bandwidth Throttler would charge
you for a full 32KB of bandwidth rather than the 300 bytes that
were really used.  This was grossly overstating the bandwidth
consumption to the throttler.

The CopyWithZone method did not copy the authenticationScheme, resulting
in problems when using a copied ASIHTTPRequest.

Cache Error with downloadDestinationPath, Not storing downloaded data

* Use [pool drain] because Xcode told us to
* Get rid of a couple of random nib warnings

Make CF allocated objects collectable

NSMakeCollectable and the Static Analzyer should play nice

Move expiryDateForRequest to ASIHTTPRequest

Update projects for newest Xcode / SDK

Solve building warning on Xcode 4.2 & iOS SDK 5.0