Several small fixes to log files:
1. In lsq6, setLogFile added for nu_estimate, nu_evaluate, and inormalize. Previously, files were placed in main pipeline directory.
2. Fixed error in stats_tools for creation of logFile in final_linear xfmConcat. logFile was set as an instance of LogFile rather than a string.

Other small fixes:
1. Removed a comment in rotational_mictracc atom: getBlur already checks for specified fwhm, throws an error if it doesn't exist!
2. Removed unused self.output from xfmConcat.