SphereCell: Allow +180 longitude on input (FIXME to not use var in case class)
metering: Add foreachMetered for iterators
Classifier: Add --debug write-features=file
Classifier: Don't remove non-choice-specific columns when classifying
TADM: Make it possible to specify both L1 and L2 penalty
VowpalWabbit: Add interface to program, make Classify app work with it
FeatureVector: Separate out doc-only features
VowpalWabbit: Get classifier ranker working
VowpalWabbit: Add command-line args for additional options