Added support for qtsdk repository

The script now makes a decision of archived repository based on
basename of path given in -u argument.

Change-Id: I4bf5e0b62c0cbf10732881f94963e78d1e1276f9
Reviewed-by: Johanna Äijälä <johanna.aijala@digia.com>
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>