* ios_logging: Fix typo in documentation
* ios_logging: Fix traceback when setting buffered destination without size
When the size parameter is not configured while configuring the buffered
destination, a traceback occurs due to the fact that validate_size expects the
parameter to be an int. Explicitely converting value to int makes the
check work for every case.
* ios_logging: Update size parameter documentation
Update the documentation of the size paramter to reflect the current behaviour
of setting a default of 4096 for the buffered dest.
* ios_logging: Add unit test
Add unit test for ios_logging testing the behaviour clarified in the previous
commits.
* ios_logging: Fix python 2.6 compliance
