version 0.7 - add parsing of release_metadata.xml and checking of the MD5 checksums (based on suggested code from ChrisD)
The script will always download release_metadata,xml, even in --dryrun mode, so that it can check the
validity of any zip files you've already downloaded.
https://developer.symbian.org/oss/API_REF/SHAI/
https://developer.symbian.org/oss/FCL/examples/app/NPR/
https://developer.symbian.org/oss/MCL/utilities
https://developer.symbian.org/sfl/API_REF/Public_API/epoc32/
https://developer.symbian.org/oss/FCL/interim/auxiliary_tools/AgileBrowser
https://developer.symbian.org/oss/FCL/interim/auxiliary_tools/EUserHL
https://developer.symbian.org/oss/FCL/interim/auxiliary_tools/route_generator
https://developer.symbian.org/oss/FCL/interim/auxiliary_tools/simulation_PSY
https://developer.symbian.org/oss/FCL/interim/desktopsw