Update for Xcode 4.6: remove unneded cast

git-svn-id: http://gtm-http-fetcher.googlecode.com/svn/trunk/Source@112 b3aa69f0-f65c-a609-0a27-78855af037c1
Fetcher changes for better thread safety

git-svn-id: http://gtm-http-fetcher.googlecode.com/svn/trunk/Source@113 b3aa69f0-f65c-a609-0a27-78855af037c1
Add GTM_NONNULL

git-svn-id: http://gtm-http-fetcher.googlecode.com/svn/trunk/Source@114 b3aa69f0-f65c-a609-0a27-78855af037c1
Back out GTM_NONNULL declarations.

git-svn-id: http://gtm-http-fetcher.googlecode.com/svn/trunk/Source@115 b3aa69f0-f65c-a609-0a27-78855af037c1
More GTM_NONNULL removal

git-svn-id: http://gtm-http-fetcher.googlecode.com/svn/trunk/Source@116 b3aa69f0-f65c-a609-0a27-78855af037c1
Add accessors for log file names

git-svn-id: http://gtm-http-fetcher.googlecode.com/svn/trunk/Source@118 b3aa69f0-f65c-a609-0a27-78855af037c1
Add GTMHTTPFetcherLogViewController

git-svn-id: http://gtm-http-fetcher.googlecode.com/svn/trunk/Source@119 b3aa69f0-f65c-a609-0a27-78855af037c1