Fixed regression with -e
Merge branch 'master' of github.com:philsquared/Catch

# By Zhihao Yuan
# Via Phil Nash (1) and Zhihao Yuan (1)
* 'master' of github.com:philsquared/Catch:
  fix macro syntax in doc
Some clean-ups for string handling in Objective-C
Tag aliases feature
Approved tag alias tests
Build 49
- _THROWS fix
- tag aliases