from pd-l2ork: 1e654625d71b6c0efae614cfa428e8cfae6e9b1e

from pd-l2ork: 640d3c53ad8cd592b1d757b988e27d3ada2b1779

*improved installer to make it easier to recompile pd-l2ork when continuing development after building a snapshot deb or tarball installer (the pd folder will retain config script with the appropriate --prefix flag)

*made disis_gpio and disis_spi buildable on all platforms (so that one can easily develop patches on a laptop and transport them onto RPi

improved installer to avoid install of Gem libraries when doing incremental install (should significantly shorten incremental installs)

made disis_wiimote statically linked so that new installs do not require install of the custom cwiid library that potentially clashes with other deb-based versions.