Fix parameter name in the documentation.
Suppress warning caused by the lack of an NSJSONReadingOptionsNone enum value.
Make reference to self in block explicit (found by -Wimplicit-retain-self).
Add noreturn attribute to the thread entry point method. (Found by -Wmissing-noreturn)
The connection parameter is only unused if assertions are turned off. (Found by -Wused-but-marked-unused)
Merge pull request #3 from RobotK/master

Fixes for warnings found by -Weverything