New Igor release (for cocoapods)

[woahdae]

The last "release", 0.5.0, is a year old and used by cocoapods thusly. At the very least, the fix in issue #12 needs to be released for Igor to build in the latest XCode.

Any obvious issue with releasing master as ex. 0.6.0? (I suspect a years' worth of development is more than a point update, but just guessing).