Removed non-templated FormatString::universalPrint and universalToString
Removed non-templated FormatString::universalPrint and universalToString

Non-templated versions were cause trouble with perfect forwarding of
const values.

databricxx/databricxx,oschulz/databricxx,oschulz/databricxx,databricxx/databricxx,aguetlein/databricxx,aguetlein/databricxx