Does not compile on Cygwin #26
Description
Recent changes that introduced the use of the C++ standard library function std::to_string() cause compiler errors when building Beaker with GCC on platforms where the system C library is newlib (e.g. Cygwin). This is a documented defect of libstdc++ (see asutton/origin#2) that has only been fixed recently in GCC 6.0, which is still under development.
Possible solutions include the workaround that is currently used in Origin, using std::ostringstream, or C++ Format.