Add explicit ObjectProxy.__getattr__() in C implementation so can be called from derived classes.
Add means of enablib/disabling decorators at time of application and time of use.
Documentation for enabled option to decorator and function wrapper.
Merge branch 'feature/function-wrapper-guard' into develop
Use tox to drive testing for configurations with and without C extension rather than a shell script.
Initial implementation of post import hooks mechanism.
Adjust test to use different module as socket imported by coverage tools.
Documented in changes file post import hook mechanism.
Also need to delete class instance as well as function on class under Python 3 for weak function wrapper on instance method.
Merge branch 'feature/post-import-hooks' into develop