[CB-2379] Update CordovaLib Project Settings according to Xcode 4.6 recommendations
[CB-2334] Add "body" property to FileTransferError object on iOS

Note that right now it assumes the response from NSURLResponse is text and not binary.
[CB-2213] Added NATIVE_URI to getFileMetadata.
[CB-2213] Added NATIVE_URI to readAsDataURL.
[CB-2213] Added NATIVE_URI to getMetadata.
[CB-2213] Added NATIVE_URI to three methods.

The three methods are FileEntry.remove, FileEntry.setMetadata, and FileReader.readAsText.
[CB-2213] Added the AssetsLibrary framework.
[CB-2213] Added NATIVE_URI to copyTo and moveTo.

Note that moving a file from the assets library isn't allowed since we can't delete from there.
[CB-2213] Updated errors for write and truncate.
[CB-2213] Updated a NATIVE_URI error (getParent).
[CB-2213] Added NATIVE_URI to FileTransfer.upload.
[CB-2213] Skipped image scaling when possible.

Image scaling/conversion is skippable when we're returning a native URI (eg. assets-library://).
[CB-2213] Added native URI request handling.

That is, requests with an assets-library:// URL are now handled correctly.
Uncrustify CDVFile and CDVFileTransfer
Use correct MIME-type for asset-library responses.

Also refactored response sending to reduce copy/paste.
Fix /bin/create script to work with GNU sed in path
Add option for ipad/iphone in cordova/emulate

Based off of pull request from net-uk-sweet (thanks!)
Don't call onReset for iframe navigation
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/cordova-ios
CB-2207 Use a custom script for www/ copying.