rqPen 1.3 (Release date: 2016-02-08)
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Changes:

* Fixed bug that casued cv.rq.pen to be doing k-folds cross validation incorrectly.  
* QICD approach should be considered in work. Future updates will include a more vetted and faster algorithm.

rqPen 1.2 (Release date: 2015-10-13)
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Changes:

* Added group penalty function with two implementations. QICD, a coordinate descent approach, and a linear programming approach.
* New functions for group penalties include: groupQICD, groupQICDMultLambda and nonzero
* Added coefficient functions for cv.rq.group.pen and cv.rq.pen
* Added kernel based weight functions kernel_estimates and kernel_weights. These will be for future implementations that use inverse weighting as an approach for handling missing data.

rqPen 1.1 (Release date: 2015-03-15)
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Changes:

* Corrected errors in SCAD and MCP penalties
* Combined scad_1_deriv and scad_2_deriv into one function scad_deriv
* swapped order of weights and lambda in functions rq.lasso.fit, rq.nc.fit and cv.rq.pen


rqPen 1.0 (Release date: 2014-10-29)
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