Remove unneeded .0
Stop computing two useless values and fix a comment
Tweak up testWrap: correct the name, reduce redundant computation of sin(ang) and cos(ang).
Tweak up some names, comments and a unit test associated with wrapNear
Further tweaks to wrapping.
Added SWIG/python support for the copy constructor for all objects.
Modified to assume slalib is a eups package
Undo last change: we'll keep slalib in std location