Updated GCC version in travis
Change to travis script
Change to travis script #2
Change to travis script #3
Change to travis script #4
Change to travis script #5
Enabled C++11 for GCC
Another update to travis
Another update to travis
Another update to travis
Enabled C++11 for Clang
Refactored part of functor_ck to use variadic templates
More refactoring of new functor_ck
More clean-up and some renaming of files
Deleted funcproto.hpp
Some minor clean-up
Some fixes for gcc
Added a version check for GCC
Trial fix for cmake version check
Another trial for version check