cmake: Remove unneeded warning flags
cmake: Add check for boost::filesystem::canonical
cmake: Add check for boost::filesystem::absolute
cpp: ome-compat: Add filesystem compatibility header

Work around missing absolute() and canonical() functions in older
versions of Boost.  canonical() is missing in 1.46 and earlier.
absolute() is missing in versions older than 1.46.
cpp: bioformats: FormatReader uses ome-compat filesystem fallbacks
cpp: test: Fix FormatTools test to work with Boost 1.42

Old versions of Boost don't provide an ostream operator for
std::array.
cpp: test: Fix FormatReader test to work with Boost 1.42

Older versions don't cope with equality comparison of
variants using gtest EXPECT_EQ but succeed when using
raw ==.
docs: Downgrade minimum Boost version to 1.42
merge develop -D org: PR 857 (Initial support for Zeiss .lms files)
merge develop -D org: PR 858 (Initial support for Veeco AFM data)
merge develop -D org: PR 981 (Ignore namespaces when filling in an XMLAnnotation's Value)
merge develop -D org: PR 983 (Woolz: make sure the service is initialized when calling openBytes (rebased onto develop))
merge develop -D org: PR 999 (Fix for single channel  meas_mode 13 data (rebased onto develop))
merge develop -D org: PR 1014 (Add initial structure for decompressing JPEG XR images (assist #8493).)
merge develop -D org: PR 1028 (Large fileset performance improvements (rebased onto develop))
merge develop -D org: PR 1029 (TIFF: adjust optimal tile height if tiles have height of 1 (rebased onto develop))
merge develop -D org: PR 1030 (CZI: restrict dimension adjustment (rebased onto develop))
merge develop -D org: PR 1031 (Volocity: parse timestamps from .atsf files (rebased onto develop))
merge develop -D org: PR 1035 (C++: Compatibility workrounds for Boost.Filesystem 1.46 and earlier)
merge develop -D org

Repository: openmicroscopy/bioformats
Excluded PRs:
  # PR 1015 qidane 'Messy binary' (exclude comment)
  # PR 1002 qidane 'Adding a Map type and MapAnnotation' (label: breaking)
  # PR 528 melissalinkert 'Tile performance improvements for VMS and NDPI' (label: exclude)
  # PR 978 berl 'Add writing of .v3draw format for easy loading with Vaa3D.' (user: berl)
  # PR 816 melissalinkert 'Add support for multi-channel Volocity Clipping datasets' (label: exclude)
Updating 60ca551..dc857b1
Merged PRs (fast-forward):
  # PR 1032 melissalinkert 'Update version history for 5.0.1 (rebased onto develop)'
  # PR 1006 melissalinkert 'Read internal pyramids from CellSens .vsi data (rebased onto develop)'
  # PR 1008 melissalinkert 'Enable SDT plane preloading by default (rebased onto develop)'
  # PR 1007 melissalinkert 'SVS import and TIFF export fixes (rebased onto develop)'
  # PR 1005 melissalinkert 'ND2: always set the field index to 2 (rebased onto develop)'
  # PR 1004 bpindelski 'Update docs regarding BF and Eclipse (see #12127). (rebased onto develop)'
  # PR 991 melissalinkert 'Only add a MetadataOnly element if no TiffData elements are present'
  # PR 990 melissalinkert 'Memoization fixes (rebased onto develop)'

Merged PRs:
  # PR 857 melissalinkert 'Initial support for Zeiss .lms files'
  # PR 858 melissalinkert 'Initial support for Veeco AFM data'
  # PR 981 melissalinkert 'Ignore namespaces when filling in an XMLAnnotation's Value'
  # PR 983 melissalinkert 'Woolz: make sure the service is initialized when calling openBytes (rebased onto develop)'
  # PR 999 melissalinkert 'Fix for single channel  meas_mode 13 data (rebased onto develop)'
  # PR 1014 bpindelski 'Add initial structure for decompressing JPEG XR images (assist #8493).'
  # PR 1028 melissalinkert 'Large fileset performance improvements (rebased onto develop)'
  # PR 1029 melissalinkert 'TIFF: adjust optimal tile height if tiles have height of 1 (rebased onto develop)'
  # PR 1030 melissalinkert 'CZI: restrict dimension adjustment (rebased onto develop)'
  # PR 1031 melissalinkert 'Volocity: parse timestamps from .atsf files (rebased onto develop)'
  # PR 1035 rleigh-dundee 'C++: Compatibility workrounds for Boost.Filesystem 1.46 and earlier'

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