Check CFStringTransform() call for success before using result
Merge pull request #1866 from CFKevinRef/1.x

Check CFStringTransform() call for success before using result
Same fix as 6c7250e for 1.x branch

Wrapping OSStatus and NSCAssert with NS_BLOCK_ASSERTIONS macro to prevent unused variable
Merge pull request #1888 from indragiek/1.x

Same fix as 6c7250e for 1.x branch
Merge remote-tracking branch 'afnetworking/1.x' into 1.x

* afnetworking/1.x:
  Same fix as 6c7250e for 1.x branch
  Check CFStringTransform() call for success before using result