Merge pull request #1542 from joshmoore/rebased/develop/blitz_integration_tests

Blitz integration tests (rebased onto develop)
Merge pull request #1504 from jburel/rebased/develop/training-java

Training java (rebased onto develop)
Merge pull request #1465 from will-moore/omeroweb_examples_fixes_develop

Omeroweb examples fixes develop
disable nulling of fileset version info for chgrp, delete
Update Django to 1.5.4
Django 1.5.4 requires a default cache
Fix template_loader imports
Fix direct_to_template
Replace django.views.generic.simple.redirect_to
Fix urlpatterns by moving (?i) prefix
Quote all view names in url tags
Add new omero.web.allowed_hosts setting, defaults to '*'
Merge pull request #1651 from jburel/help-order

Help order
Add importer.app or .exe to clients zip.
Fix indent.
Remove unused import.
Do not show the T slider if only one timepoint.
Merge pull request #1654 from jburel/import-log

Import Log
introduce FilesetVersionInfo into graph traversal
make Adler-32 least favored