cd target/ before doing the code-signing

This is so that ./build.py clean will remove any logs or temporary directories
Disable jar-signing in update-version target

Conflicts:
	build.xml
Merge pull request #2200 from dominikl/rebased/dev_4_4/projects_disappear

Bugfix: Weird behaviour after switching users (rebased onto dev_4_4)
merge dev_4_4 -D org: PR 2144 (Passes channel configuration to Make_Movie (see #12036))
merge dev_4_4 -D org: PR 2238 (Webstart code-signing 4.4)
merge dev_4_4 -D org

Repository: openmicroscopy/openmicroscopy
Already up-to-date.

Merged PRs:
  # PR 2144 cneves 'Passes channel configuration to Make_Movie (see #12036)'
  # PR 2238 manics 'Webstart code-signing 4.4'

Repository: openmicroscopy/bioformats
Excluded PRs:
  # PR 1020 hflynn '4.4.11 docs fixes' (status: error)
Updating d853f51..17f5076
Merged PRs (fast-forward):
  # PR 907 ctrueden 'Tell Eclipse to ignore gmaven-plugin configuration'
  # PR 930 hflynn 'Using correct redirect for 4 download page'
  # PR 936 hflynn 'Fixing IDL links'
  # PR 879 hflynn 'Updating TILL Photonics website link (rebased onto dev_4_4)'

Repository: ome/scripts
Updating bef5c0c..4e28e22
Merged PRs (fast-forward):
  # PR 74 sbesson 'Fix scripts to comply with PEP8 1.5.0 (rebased onto dev_4_4)'
  # PR 65 sbesson 'Drop --use-mirrors from .travis.yml (rebased onto dev_4_4)'

Merged PRs:
  # PR 67 cneves 'Allow passing extra channel rendering options to Make_Movie script (see ...'

Repository: openmicroscopy/ome-documentation
Updating ef59469..2250156
Merged PRs (fast-forward):
  # PR 668 hflynn 'Always link to latest 4 download page'
  # PR 662 hflynn 'Making 4.4 status as maintenance version clear'
  # PR 648 sbesson 'Drop --use-mirrors from .travis.yml (rebased onto dev_4_4)'
  # PR 641 hflynn 'Updating 4.4.x Demo server unavailable now'
  # PR 635 sbesson 'Document latest changes to the Homebrew OMERO formula'
  # PR 631 hflynn 'Changing Windows Ice download link to 3.4'

Generated by OMERO-4.4-merge-daily#490 (http://ci.openmicroscopy.org/job/OMERO-4.4-merge-daily/490/)