v0.5.6: Merge pull request #60 from yuyichao/0.6

Fix 0.6 typealias depwarn

v0.5.5: Merge pull request #59 from yuyichao/0.6

Fix depwarns on 0.6

Add missing conversion methods

Merge pull request #57 from JuliaStats/anj/convert

Define AbstractArray{T} convert methods.

Deprecation fixes for Julia 0.6

Merge pull request #55 from JuliaStats/anj/06

Various 0.6 fixes

Fix macro

Merge pull request #52 from JuliaStats/anj/macro

Fix check_argdims macro

v0.4.2: added conversions between element types (#46)

More revisions for use with automatic differentiation. Also includes functions for conversion between PDMats with differing element types.