01.23.14 linking with SEXPtools
added more realistic package release date
wrong package
might as well call this v 0.3 at this point
01.23.14 added dense/sparse converters and matrix generators for testing
01.27.14 dmat and dsmatrix started, converters added
more converters
01.30.14 fixed conversion bug
dsmat stuff working; added %*%
inverse
Fixed (?) Makevars.win
02.04.14 unified vignette
vignette
updates
Merge pull request #10 from snoweye/master

updates
Fixed vignette
moved tests, using norm() for 1-norm calculation in expm()
expm() changes and sparsity() fixes
expm bugfixes, expansion for action of exponential
added parameter stress test