Merge pull request #37 from csherratt/master

Add a translate constructor for Transform3D.
Rotation2 and Rotation3 improved with from_* methods. Betwee_vecs implemented for all rotations.
Axis-aligned boxes use top and bottom corners

Fixes issue #35.
Merge pull request #39 from kvark/t-quat-arc

between_vecs implementation, Rotation traits improvement
Merge pull request #38 from rsaarelm/master

Axis-aligned boxes use top and bottom corners
replace fmt::Default with fmt::Show
Merge pull request #41 from rlane/fmt-show

replace fmt::Default with fmt::Show
Utility methods for AA boxes
Translate method for AABBs
Translate and scale methods for AABB
to_str for Aabbs
Don't use abbrevations for the Aabb field names
Arguments directly used to construct AABB passed by value
Merge pull request #40 from rsaarelm/master

Utility methods for AA boxes
Add Makefile and enable rust-ci doc export
Merge pull request #42 from bjz/make

Add Makefile and enable rust-ci doc export
Remove obsolete compilation instructions
Temporary workaround for the fact that std::num::Orderable is now removed.