bug fix.
Add toDataSlot function to ASMPupilTracker.
Add CSVFileWriter to jzplib_utils
add simpleDataFormat function.
add data string to the result dir.
Add capture result return to captureImage function.
Generalize the Pupil tracker executables to be an feature dumper.
In curvegazingrecorder, use pupil tracker to preview and dump result.
Merge pull request #2 from jiangzp/master

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