New C++ 11 standard prohibit default values in friend functions that are not fully defined.
Added support for XSL style sheet processing instructions.
Added streams style and updated config.
Build RC7 with style sheets.
Added stylesheet to xslt.
Take all description attributes and reproduce them.
Handle sample count when time series is unavailable.
Fixed style handling in config.
Updated streams style.
Added docs for RealTime and RealtiveTime.