Added return status checks when building list of pinned public keys
Added return status checks when handling connection's authentication challenge
Fix bug where examples always used AFSSLPinningModeNone
Remove all _AFNETWORKING_PIN_SSL_CERTIFICATES_ conditions

Fixes #1098
Update documentation re: _AFNETWORKING_PIN_SSL_CERTIFICATES_
Remove reference to _AFNETWORKING_PIN_SSL_CERTIFICATES_
Add adn certificate to Mac example
Fix AFHTTPBodyPart's read:maxLength: method to no longer treat a negative response from -[NSInputStream hasBytesAvailable] as an indication that the stream has come to an end, and instead examine the stream's state.
Use new httpbin image request to fix image test.
Merge pull request #1124 from carsonmcdonald/fiximagetest

Use new httpbin image request to fix image test
Fixing broken images in README
Merge branch 'master' of github.com:AFNetworking/AFNetworking
Use new httpbin image request to fix image test.
Restore execution of tests under Travis
Switch Travis build script to leverage xctool 0.1.7, which supports implicit dependencies. Simplify xctool invocation
Setting default SSL Pinning Mode in example to None only if host name does not match
[Issue #1135] Fixing outdated links to documentation
Merge pull request #1128 from blakewatters/bugfix/restore-travis

Restore execution of tests under Travis
Merge pull request #1100 from dstnbrkr/remove-conditional-compilation

Remove conditional compilation (_AFNETWORKING_PIN_SSL_CERTIFICATES_)
Add tests for some functionality in [AFHTTPClient initWithBaseURL]