Fix pillow/PIL import. Fix test02_UseImageAsFile
Fix pillow/PIL import. Fix test02_UseImageAsFile

`import Image` does not work. Use `from PIL import Image` instead.
http://stackoverflow.com/questions/19230991

PyTables/PyTables,FrancescAlted/PyTables,avalentino/PyTables,FrancescAlted/PyTables,avalentino/PyTables,PyTables/PyTables,avalentino/PyTables,PyTables/PyTables,FrancescAlted/PyTables