made 'cp' windows-aware
changed rm command
cleanup
made 'cp/rm' windows-aware

changed rm command

cleanup
Merge branch 'fix_snapshotTest_windows' of github.com:riptano/cassandra-dtest into fix_snapshotTest_windows
typo fix
Merge pull request #68 from riptano/fix_snapshotTest_windows

Fix snapshot test windows