Implement setOwner on windows. Add test for setOwner_ok.
Add global import for process_capabilities.
Moved _adjustPrivileges to nt_filesystem.
Refactored process_capabilities into a class singleton.
Reverted changes to __init__.py. Moved setOwner test to posix tests.
Reverted aliasing for win32security, win32file and win32process.
Fixed aliasing error.
Merge with master.
Fixed identifiers naming. Refactored code to use context managers.
Make adjustPrivilege a public method.
Add tests for _adjustPrivilege.
Fix hasPrivilege method.
Change tests to use SE_BACKUP_NAME.
Fix docstring error.
Refactor as per code review.
Add unit tests for setOwner changes.
Restrict in context operations to minimum.
Fixed tests.
Removed erroneous indent.
Rename test.