configure: do not use GNUTLS on OSX by default, since it is linked to CoreFoundation; correctly detect OpenSSL
configure: enable_gnutls respects $enableval value
valid GS_RANGE_CHECK for NSUInteger
sloppy Mountain Lion support, passes only 7572 tests out of 7588 required
Mountain Lion compatible xCode project
NSURLProtocol, NSURLConnection: fixes
NSURLProtocol: resolved memory-management issue
Merge branch 'dev'
Automatic configuration on OSX. Basic 10.8 support. Fixes in URL-loading system.