Massive cleanup effort to reorganize the layout of the directory tree. Also fixed a bug in Hessenberg::Normm for the row-norm.
Moved SpecialFunction out (accidental previous move)
Add Cholesky factorization and tests (and test for complex generalized eigenvalue)
Added ignoring of PDFs
Merge branch 'master' of https://github.com/victorliu/RNP2
Deleted bits/GeneralizedEigensystems since it was moved to LA