OutputReporter displays unnecessary warnings

[tkuchida]

Typical text reported to user in Messages Window of GUI:

Loading coordinates from file C:\local\path\here\ik.mot.
Storage: read data file =C:\local\path\here\ik.mot (nr=238 nc=40)
Found 238 state vectors with time stamps ranging from 0 to 2.37.
No external loads will be applied (external loads file not specified).
Executing the analyses from 0 to 2.37...
Warning: No outputs were connected to 'ReporterDouble' of type TableReporter__double_. You can connect outputs by calling addToReport().
Warning: No outputs were connected to 'ReporterSpatialVec' of type TableReporter__SpatialVec_. You can connect outputs by calling addToReport().
Printing results of investigation test to C:\local\path\here\Results-Analyze-Walk.
OutputReporter.printResults: 

Issues:

• Warnings are unnecessary and the suggestion to call addToReport() does not appear to be helpful for GUI users.
• The last line of the output is "OutputReporter.printResults:" (i.e., content of message appears to be missing).