expm rewrite
Merge branch 'master' of github.com:wrathematics/pbdBASE
cleaning up expm
better commenting in expm
added global variables declaration
fixed matexp compile error, man warning
fixed global vars notes, removed RNACI import
markdown README
registered native routines
Merge pull request #19 from RBigData/master

Updates
Merge pull request #4 from wrathematics/master

Updates