Fix ImageAcquisitionDate parsing for DeltavisionReader

Previously, the last block of parseLogFile() was always escaped and the
creation date was being filled as a parameter/key value in the global
metadata. This commit restores the validity of the last block and fixes the
joda DATE_TIME pattern.
merge dev_5_0 -D org: PR 1231 (Update version history for 5.0.3)
merge dev_5_0 -D org: PR 1238 (Autogen: prevent ClassNotFoundException from being needlessly thrown)
merge dev_5_0 -D org: PR 1239 (Update auto-generated documentation)
merge dev_5_0 -D org: PR 1240 (Fix ImageAcquisitionDate parsing for DeltavisionReader)
merge dev_5_0 -D org

Repository: openmicroscopy/bioformats
Excluded PRs:
  # PR 1230 melissalinkert 'Update version numbers to 5.0.3' (label: exclude)
Already up-to-date.

Merged PRs:
  # PR 1231 melissalinkert 'Update version history for 5.0.3'
  # PR 1238 melissalinkert 'Autogen: prevent ClassNotFoundException from being needlessly thrown'
  # PR 1239 sbesson 'Update auto-generated documentation'
  # PR 1240 sbesson 'Fix ImageAcquisitionDate parsing for DeltavisionReader'

Generated by OME-5.0-merge-push#145 (http://ci.openmicroscopy.org/job/OME-5.0-merge-push/145/)