bqi: print strings transparently on console

Don't pass them through 'repr()', because this would escape non-latin
chars and mangle whitespace '\n','\t' chars.
bqi: print the type of RPC results

Sometimes we need to tell an integer from a string result, for example.
modulize/template: don't "cd" to build directory, always use "%setup"

In the case that we extract no source (eg. in git-clone), we still need
to call '%setup' so that BUILD dir is set to that directory. Changing to
it manually (with "%{cd_if_modular}" ) breaks the %doc macro.
modulize/template: replace $RPM_BUILD_ROOT with macro

It is better not to mix those.