travis: Updated ppa for swig3.0
travis: Updated ppa for swig3.0

UPM requires swig 3.0.5 which *was* offered in fenics-exp, but is
no longer available there.  Switched to fenics-dev.

Signed-off-by: Noel Eck <1e36ab6ededef40f3f16bdbc1b09eee72c5d08cf@intel.com>

g-vidal/upm,andreivasiliu2211/upm,skiselev/upm,whbruce/upm,nitirohilla/upm,intel-iot-devkit/upm,whbruce/upm,stefan-andritoiu/upm,stefan-andritoiu/upm,malikabhi05/upm,Jon-ICS/upm,jontrulson/upm,intel-iot-devkit/upm,sasmita/upm,sasmita/upm,spitfire88/upm,sasmita/upm,jontrulson/upm,intel-iot-devkit/upm,g-vidal/upm,g-vidal/upm,jontrulson/upm,pylbert/upm,pylbert/upm,andreivasiliu2211/upm,skiselev/upm,intel-iot-devkit/upm,stefan-andritoiu/upm,Propanu/upm,whbruce/upm,pylbert/upm,malikabhi05/upm,stefan-andritoiu/upm,malikabhi05/upm,nitirohilla/upm,intel-iot-devkit/upm,malikabhi05/upm,spitfire88/upm,g-vidal/upm,jontrulson/upm,Jon-ICS/upm,nitirohilla/upm,pylbert/upm,skiselev/upm,spitfire88/upm,Propanu/upm,Jon-ICS/upm,Jon-ICS/upm,whbruce/upm,skiselev/upm,pylbert/upm,spitfire88/upm,g-vidal/upm,jontrulson/upm,andreivasiliu2211/upm,whbruce/upm,intel-iot-devkit/upm,Propanu/upm,malikabhi05/upm,spitfire88/upm,pylbert/upm,Propanu/upm,Propanu/upm,Jon-ICS/upm,skiselev/upm,Propanu/upm,sasmita/upm,nitirohilla/upm,andreivasiliu2211/upm,nitirohilla/upm,g-vidal/upm,skiselev/upm,andreivasiliu2211/upm,stefan-andritoiu/upm,sasmita/upm,malikabhi05/upm,stefan-andritoiu/upm