Bumped to version 0.8
Merge branch 'readmefix' into develop
Added __iter__ to metaclass to get all the elements sorted by value. Changed __repr__ to use that
 Sorting based on value and metaclass name changed. Adding multiple inheritance support
Added isinstance for elements of parent classes (+ tests).
Function `no_conflict` to be used as metaclass on multiple inheritance: versions Py3.2.x+ are not affected by metaclass calculation bug and show "TypeError: metaclass conflict".
Check for repeated values/names on multiple inheritance enums (+ tests). Functions for duplicate and to flatten list (+ tests)