* mincLm, anatLm, and vertexLm now return: f-statistic, r-squared, betas, t-statistics (in that order)
* made changes to mincFDR.mincMultiDim such that it ignores the beta- and R-squared columns from mincLm, anatLm and vertexLm output
* added a more useful warning to the mincFileCheck function. Instead of simply reporting that not all files can be read, the offending input file is presented
* added garbage collection statements to the following functions in an effort to minimize R's memory usage: mincAnova, mincFDR, mincApply, mincApplyLme, vertexLm, anatLm