iOS / asi-http-request

Many thanks to Garrett Bjerkhoel for the code and patience in getting this merged (I've slightly adapted his original take on this)

Conflicts:

	Classes/ASIHTTPRequest.m

credentials

…request, as long as you explictly set authenticationScheme to kCFHTTPAuthenticationSchemeBasic

Add readme for GHUnit

* GHUnit is no longer included as a git submodule. Instead, build scripts are used to fetch a pre-compiled GHUnit framework if one does not exist in External/GHUnit.
* iPhone sample has moved to using the framework rather than the static library for GHUnit
* Fiddle with conditional compilation for NSXMLParserDelegate
* Tweak the build phases to move running the scripts earlier
* Fix a clang warning that crept in as part of the recent changes to behaviour for fetching PAC files
* Remove legacy clang.sh script
* Move build scripts into their own folder

Conflicts:
	Classes/ASIHTTPRequest.m

…TLM (non-proxy) auth stuff
Tweaks to clean things up a bit

Previously the loop terminated when the output buffer was not completely filled by the previous call. Most of the time this is correct, because if the output buffer was completely filled, there is probably more to come. However, in the situation that the output fits perfectly in the output buffer, the buffer will be completely filled, yet there is nothing left to process.  In this case we would run through the loop again calling inflate() / deflate() which would return Z_BUF_ERROR. This would manifest itself as the request (needlessly) failing.

Rather than this we should simply terminate the loop when there is no more input left to process.

# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
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# Committer: Alex Deem <alexdeem@Alex-MacBook-Pro.local>
#
# On branch master
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#	modified:   Classes/ASIDataCompressor.m
#	modified:   Classes/ASIDataDecompressor.m
#

…ese would ever have leaked, but clang might warn about this.

…ting it back to UTF-8
Add tests for ASIWebPageRequest encoding
Also, strip any gzip content-encoding header, since the parsed response will not be deflated (cache does this anyway, but we can't guarantee we'll have one)

…ing ASIFallbackToCacheIfLoadFailsCachePolicy. If there is no cached data, the request will fail with an error.
closes gh-118 - many thanks to Erik von Harten for catching this!

added before any server response when the
authentication scheme is Digest or NTLM

…when dismissed on iPad
[#71 state:resolved]

Tweak tests that rely on invalid urls to make them work to make them more reliable

This should help in situations where the PAC File is unavailable or the connection is very slow

… background task support)
Fix warning about undeclared selector