Merge pull request #73 from ktakagaki/master

FFT/IFFT implementation (breeze.signal)
remove the hopelessly out of date "Tour".
Merge remote-tracking branch 'scalanlp/master'
Add link to scaladoc in README.md
Merge pull request #76 from jvns/patch-1

Add link to scaladoc in README.md
Update required version of sbt in README
Merge pull request #77 from jvns/patch-2

Update required version of sbt in README
Update README.md

adding Kentaroh Takagaki (@ktakagaki) as a contributor.
remove learn from the build file.
no more warnings. closes #69.
Merge remote-tracking branch 'scalanlp/master'
broadcasting for columns
Broadcasting for slices
broadcast along rows
adding offset until :: as syntax for offset until size.
Merge branch 'broadcast'. Fixes #48.
LogNormal Distribution, which is the distribution for r.v.'s X, such that log X ~ N(µ, sigma).
toDenseMatrix and asDenseMatrix for DenseVector

fixes #66
improving DenseVector docs some.
change Vector.rand to take a Rand[T] generator.