Updated updater-script to use nice descriptive archive names.

Change-Id: Ia5d09c1d84c6a492e80b32420a811f8fbee73ca8
Signed-off-by: Tom Swindell <t.swindell@rubyx.co.uk>
Merge pull request #13 from tswindell/hybris-10.1

Updated updater-script to use nice descriptive archive names.