New version
    
    - Fix return type of the unload_plugins() function (vpodzime)
    - Close the DL handle when check() or init() fail (vpodzime)
    - Add one more check to the reload test (vpodzime)
    - Drop reference to check() and init() functions (vpodzime)
    - Add more cats to tests (vpodzime)
    - Make regexp for getting btrfs version more generic (vpodzime)
    - Merge pull request #8 from vpodzime/master-check_functions (vpodzime)
    - Fix parameters passed to unoverridden swapon function (vpodzime)
    - Implement and test swap plugin's check function (vpodzime)
    - Implement and test MD RAID plugin's check function (vpodzime)
    - Implement and test mpath plugin's check function (vpodzime)
    - Try harder to get util's version (vpodzime)
    - Implement and test loop plugin's check function (vpodzime)
    - Implement and test DM plugin's check function (vpodzime)
    - Implement and test BTRFS plugin's check function (vpodzime)
    - Implement and test LVM plugin's check function (vpodzime)
    - Init logging before loading plugins (vpodzime)
    - Add function for utility availability checking (vpodzime)
    - Fix default value for the fake_utils' path argument (vpodzime)
    - Add ErrorProxy instance for the utils functions (vpodzime)
    - Add function for version comparison (vpodzime)
    - Merge pull request #9 from clumens/master (vpodzime)
    - Disable pylint checking on the new exception proxy. (clumens)
    - Fix XRules application and add a test for it (vpodzime)
    - Raise NotImplementedError when an unavailable function is called (vpodzime)
    - Merge pull request #4 from vpodzime/master-error_proxy (vpodzime)
    - Merge branch 'master' into master-error_proxy (vpodzime)
    - Merge pull request #5 from vpodzime/master-not_implemented_error (vpodzime)
    - Add a simple test for unloaded/unavailable functions (vpodzime)
    - Unload the plugins properly when reinit() is called (vpodzime)
    - Raise error/exception when an unimplemented function is called (#1201475) (vpodzime)
    - Do an ugly but necessary hack to make local GI overrides work (vpodzime)
    - Add the __dir__ method to ErrorProxy (vpodzime)
    - Add a rationale for the ErrorProxy to the overrides' docstring (vpodzime)
    - Add some basic info about GI overrides to the documentation (vpodzime)
    - Use pylint to check for errors in python overrides (vpodzime)
    - Add the first small test for the ErrorProxy (vpodzime)
    - Put the GI overrides in a special dir so that they are preferred (vpodzime)
    - Add a cache for attributes already resolved by ErrorProxy (vpodzime)
    - Implement the ErrorProxy python class and use it (vpodzime)