Tests for close() working on all pycurl objects
Check that pycurl objects can be closed repeatedly
Implement CurlShare.close
Merge pull request #77 from p-push/share-close

Implement close method on share objects
Select lib directory matching current python version if there is more than one present
Handle the possibility of other tests failing in Python code called from C
Avoid treating exception as a tuple as this no longer works in python 3
Apparently "del m.handles" does not work in python 3
Add a test for general object behavior as it seems to be changed by python 3 patch
Check multi and share objects for attribute assignment behavior