merge dev_5_0 -D org: PR 1206 (Fix bfGetReader for empty input)
merge dev_5_0 -D org: PR 1221 (Zeiss LSM: fix offset calculation for > 4GB files with SizeT > 1 (rebased onto dev_5_0))
merge dev_5_0 -D org

Repository: openmicroscopy/bioformats
Excluded PRs:
  # PR 1217 melissalinkert 'FakeReader improvements, part 1 (rebased onto dev_5_0)' (status: error)
  # PR 1216 melissalinkert 'Fix Z and T size calculation for InCell 6000 data (rebased onto dev_5_0)' (status: error)
Updating 06f23c9..cbfc55f
Merged PRs (fast-forward):
  # PR 1214 melissalinkert 'TIFF: correctly account for ```fakeBigTiff``` when reading IFD entries (rebased onto dev_5_0)'
  # PR 1215 melissalinkert 'ND2: fix tile reading when the X coordinate is > 0 (rebased onto dev_5_0)'
  # PR 1219 rleigh-dundee 'travis: Switch from raring to saucy'
  # PR 1213 emilroz 'Czi expand metadata to all the channels'

Merged PRs:
  # PR 1206 sbesson 'Fix bfGetReader for empty input'
  # PR 1221 melissalinkert 'Zeiss LSM: fix offset calculation for > 4GB files with SizeT > 1 (rebased onto dev_5_0)'

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