No need to use _current_ binary dir

And this brings the line below 80 chars!
Moving common paths up into a common configuration

We now depend on a MakerBotConfig.cmake containing some common paths.

That file is part of Toolchain-Release, and will be installed to the
same cmake_install_prefix.
updating gitignore for cmake
Removing local *Config.cmake template

A more general template is now part of MakerBotConfig.cmake