Update file/directory names for Qt Quick 1 template

Make the names in line with the Qt Quick 2 ones. Also, changing
the directory/filename makes sure the update mechanism of Qt Creator
doesn't update apps generated by the 2.x wizard any more, which
might break stuff.

Change-Id: I4621d5f35eae2102aeba7e77c5cd903511be249f
Reviewed-by: Jarek Kobus <jaroslaw.kobus@digia.com>