Clear data before calling tearDown() method
Merge pull request #557 from sbesson/bfopen_imagename

Read series name in bfopen()
merge dev_4_4 -D org -I include -E exclude: PR 545 (Adding OME 5 product menu)
merge dev_4_4 -D org -I include -E exclude: PR 549 (Zeiss LSM: use the longer display channel name)