add diclaimer to CMakeLists.txt and .cmake files.
put back a file decription
Changed elseif LINUX to UNIX, LINUX doesn't exist as a cmake variable
Merge pull request #14 from medInria/runscript-linux-fix

Changed elseif LINUX to UNIX, LINUX doesn't exist as a cmake variable
add LICENSE.txt
Merge pull request #10 from rdebroiz/0000-CML_Disclaimer

CMake disclaimer.
Private plugin dirs should point to the build dirs themselves, plugins subdirs are added afterwards
Introduce USE_GIT_SSH option, set to OFF by default