Initial Unix/Windows upgrade script with download and email

Signed-off-by: Sebastien Besson <seb.besson@gmail.com>
Small, critical fixes for OMERO-qa-upgrade

Signed-off-by: Sebastien Besson <seb.besson@gmail.com>
Chris' changes for OMERO-qa-upgrade.py

Signed-off-by: Sebastien Besson <seb.besson@gmail.com>
Improvements to qa-upgrade.py after running on howe and gretzky

 * chmod 755 var/
 * better handling of hostname
 * automatically handle unzipping

Signed-off-by: Sebastien Besson <seb.besson@gmail.com>
Move hostname check earlier in OMERO-qa-upgrade.py

Signed-off-by: Sebastien Besson <seb.besson@gmail.com>
Handle gretzky as localhost

Signed-off-by: Sebastien Besson <seb.besson@gmail.com>
Make SKIPEMAIL the default for localhost

Signed-off-by: Sebastien Besson <seb.besson@gmail.com>
Refactor specific-host handling in qa-upgrade.py

Signed-off-by: Sebastien Besson <seb.besson@gmail.com>
var.chmod(0755) from qa-upgrade.py

Signed-off-by: Sebastien Besson <seb.besson@gmail.com>
Add UTF-8 encoding header to Python scripts.

Signed-off-by: Sebastien Besson <seb.besson@gmail.com>
Move OMERO-qa-upgrade.py to the root of the directory