improved error formatting in forall-next, and made fixing much more efficient.
added a new command line testing tool, improved error formatting
exhaustion now results in a warning, as before
made xCycle non-vectorised; partial application makes this unneccesary, simple type signatures are good.
removed length-zero string filering from xFrom family; this has caused me problems in the past
removed xElemIs / xElemNot; partial application makes this unneeded :)
updated string functions
removed mistaken commit
added variadic partially applied functions.
changing branch
implemented append and prepend
updated docs
added some positional selectors
updated tests
updated news, gave sensible name to generated call in MakeVariadic
bumped ersion
Merge branch 'develop' into releases