Define artifacts list using dictionary with regular expressions
Fix hardcoded OMERO-CURRENT variables
Extend artifacts download() logic to deal with any zipped component
Add logic to pass ports prefix to OMERO-qa-upgrade.py
Use sysadmin email as sender rather than Chris Allan's
Ignore .pyc files
Set BUILD_ID when calling upgrade script from Jenkins job
Remove extra pair of quotes
Explicitely pass registry, tcp and ssl ports to configuration steps

Ensure all ports are configured even if config.xml already exists
Remove unused confgure() method
Merge pull request #8 from sbesson/qaupgrade_refactor

Improvements to the QA upgrade script