Extend sqrtm to StridedMatrix and complex integer matrices.
Make sqrtm more forgiving to singular matrices.
Merge branch 'master' into sqrtm
More sqrtm tests.
LAPACK wrappers. New QR factorization, subroutines for RFP format and new symmetric tridiagonal eigensolvers.
Merge pull request #2363 from JuliaLang/anj/lapack

LAPACK wrappers.
pkg: Use triplequoting for Pkg.new()
Merge branch 'topic/pkg-triplequote'
Package up cairo and tk and dependencies from ~/.julia/{Cairo,Tk}
Improve Makefile, Update .gitignore, Update dmgCreator file.
Merge pull request #2246 from GunnarFarneback/sqrtm

Sqrtm improvements.
Avoid temporary allocation in Zip() iteration

Also adds tests