Only include libstdc++.so.6 and start script on Linux
Copy the right libstdc++.so.6 on linux-i686
Remove useless pkg_type in input files

A default pkg_type is already defined in rbm.conf.
Add a no_build_id target

The no_build_id target can be useful if you want to quickly display
a build template or other option but don't want to spend time to
compute the various build ids.
Set vim filetype on rbm config files
Fix Windows build of ctypes-otr