fix getQtLibraryName for static Qt4 modules

Static Qt4 modules don't have the major version in their name.

Task-number: QBS-598
Change-Id: I279b4c36fb13d863d2490537cfb12692fb6cb655
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>
setup-qt: fix module prefix for ActiveQt

Task-number: QBS-598
Change-Id: I3c722239bf51317e55a028680c03c31629f5ed0b
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>
setup-qt: mark ActiveQt libs as static for Qt4

Task-number: QBS-598
Change-Id: I2c453da06b927b120bcdfbecc369bb8063d27fe6
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>