finder docstring and naming improvements
finder docstring and naming improvements

mfussenegger/jedi,mfussenegger/jedi,flurischt/jedi,tjwei/jedi,WoLpH/jedi,flurischt/jedi,dwillmer/jedi,jonashaag/jedi,jonashaag/jedi,dwillmer/jedi,WoLpH/jedi,tjwei/jedi