Volocity: parse timestamps from .atsf files

See
http://lists.openmicroscopy.org.uk/pipermail/ome-users/2014-March/004286.html
InCell: fix NPE when parsing Z positions

See QA 7987 and
http://www.openmicroscopy.org/community/viewtopic.php?f=4&t=7474
ND2: always set the field index to 2

This should fix plane ordering issues reported in
http://lists.openmicroscopy.org.uk/pipermail/ome-users/2014-March/004287.html
and QA 7983.
merge dev_5_0 -D org: PR 915 (Fix for single channel  meas_mode 13 data.)
merge dev_5_0 -D org: PR 960 (Cache OME-XML between ImagePluses (rebased onto dev_5_0))
merge dev_5_0 -D org: PR 972 (CZI: restrict dimension adjustment)
merge dev_5_0 -D org: PR 984 (Enable SDT plane preloading by default)
merge dev_5_0 -D org: PR 987 (Volocity: parse timestamps from .atsf files)
merge dev_5_0 -D org: PR 988 (InCell: fix NPE when parsing Z positions)
merge dev_5_0 -D org: PR 989 (ND2: always set the field index to 2)
merge dev_5_0 -D org

Repository: openmicroscopy/bioformats
Excluded PRs:
  # PR 979 melissalinkert 'SVS import and TIFF export fixes' (status: failure)
  # PR 951 ctrueden 'Fix up Bio-Formats POMs' (status: )
Updating 6c78e1f..bdc292c
Merged PRs (fast-forward):
  # PR 952 melissalinkert 'Memoization fixes'
  # PR 946 melissalinkert 'Read internal pyramids from CellSens .vsi data'

Merged PRs:
  # PR 915 imunro 'Fix for single channel  meas_mode 13 data.'
  # PR 960 melissalinkert 'Cache OME-XML between ImagePluses (rebased onto dev_5_0)'
  # PR 972 melissalinkert 'CZI: restrict dimension adjustment'
  # PR 984 melissalinkert 'Enable SDT plane preloading by default'
  # PR 987 melissalinkert 'Volocity: parse timestamps from .atsf files'
  # PR 988 melissalinkert 'InCell: fix NPE when parsing Z positions'
  # PR 989 melissalinkert 'ND2: always set the field index to 2'

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