Adding port-arbitration mechanism to gyarpbuilder. Connections can be prioritized using compact logic.
removing printf from arrow_model.cpp of gyarpbuilder
checking required GSL_VERSION in arbitrator.cpp of libymanager
Merge branch 'master' of https://github.com/robotology/yarp
remove stray debug line breaking use of idl on windows (apologies to Ilaria, Elena)
Fixing yarpmanager compilation problem with BLAS (the -lgslcblas linker flag is removed)
Use GSL_LIBRARY instead of GSL_LIBRARIES