Qwt: done upgrading to version 6.1.1 from version 6.1.0 (closes #482).
Qwt: done upgrading to version 6.1.1 from version 6.1.0 (closes #482).

mirams/opencor,mirams/opencor,mirams/opencor,Fairly/opencor,mirams/opencor,Fairly/opencor,Fairly/opencor,mirams/opencor,Fairly/opencor,Fairly/opencor