Fixes the parameter passing inside SpotlightLog.scala

This pull-request fixes issues #225 and #226. And many other problems using the new LOG class, which should appear. 

As used at other parts of the same, the parameter passing to functions like f(arg: T*) must be as g(arg: _* ) [1]. 

The = at: " def _xyz (..) = { ... " is not obligatory in that code, but was used to maintain the scala standard function declaration.

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[1] http://stackoverflow.com/questions/8000903/what-are-all-the-uses-of-an-underscore-in-scala