Fixed to allow using matrices as scalar like entity

[mauro3]

Fixes #86

Note, this drops Julia 0.3 compatibility due to a bug in its norm function (shows up in hinit).

[coveralls]

Coverage decreased (-0.2%) to 93.417% when pulling a599301 on mauro3:m3/fix-matrix-as-scalar into a0ef97d on JuliaLang:master.

[codecov-io]

Current coverage is 93.41%

Merging #102 into master will decrease coverage by 0.23%

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[coveralls]

Coverage decreased (-0.2%) to 93.417% when pulling 77cfd6a on mauro3:m3/fix-matrix-as-scalar into a0ef97d on JuliaLang:master.

[mauro3]

Would be great if someone could review this! @obiajulu and @pwl are currently working on things which could use this (well at least the test case).

[ChrisRackauckas]

This seems like a way of fitting everything into the Vector format (and forcing Vector{Vector} output), instead of directly handling AbstractArrays (and outputing Vector{AbstractArray}). What's the reason for this decision?

[mauro3]

Yes, we (also @pwl) should discuss the best approach sometime soon.