I think these are done.  Fix for part of #93
Now to look at BitmapEncoder
Fix for #93.  Added SparsePassThroughEncoder
Merge branch 'master' of https://github.com/numenta/htm.java into BitmapEncoder_93
Merge pull request #121 from wilsondy/BitmapEncoder_93

PassThrough and SparsePassThrough Encoders #92 and #93
Bug fix in ScalarEncoder - 0s are allowed

The range would not be set correctly when minVal or maxVal was 0.  I
can't find any requirement that they not be, and this caused issues for
the ScalarEncoder with minVal = 0 and the LogEncoder with minVal or
maxVal = 1.
Adding LogEncoder and LogEncoderTest
Merge pull request #122 from wlmiller/add_logencoder

Add LogEncoder