Prep for v0.17.0

[odow]

I'm open to a discussion on whether this should be v0.16.3 or v0.17.0.

The argument for v0.17.0 is that it is a rather large change: v0.16.2...master

The main breakage risks are #257 and #259.

• Fix xprs.jl to use Clong instead of Cint #259 is breaking for anyone using the 64( functions in Lib (but they were probably already broken because of the wrong type?)
• Update wrapper of xprs.h #257 has one breakage, removing

  Xpress.jl/src/Lib/xprs.jl

  Lines 2366 to 2394 in ceb9df8

  	function _getversion()
  	buffer = Array{Cchar}(undef, 8 * 24)
  	buffer_p = pointer(buffer)
  	GC.@preserve buffer begin
  	out = Cstring(buffer_p)
  	r = Lib.XPRSgetversion(out)
  	if r != 0
  	throw(XpressError(r, "Unable to invoke XPRSgetversion"))
  	end
  	version = unsafe_string(out)::String
  	end
  	return VersionNumber(parse.(Int, split(version, "."))...)
  	end
  	function XPRSgetglobal(prob, p_nentities, p_nsets, coltype, colind, limit, settype, start, setcols, refval)
  	if _getversion() >= v"41.0.0"
  	return ccall((:XPRSgetmipentities, libxprs), Cint, (XPRSprob, Ptr{Cint}, Ptr{Cint}, Ptr{UInt8}, Ptr{Cint}, Ptr{Cdouble}, Ptr{UInt8}, Ptr{Cint}, Ptr{Cint}, Ptr{Cdouble}), prob, p_nentities, p_nsets, coltype, colind, limit, settype, start, setcols, refval)
  	else
  	return ccall((:XPRSgetglobal, libxprs), Cint, (XPRSprob, Ptr{Cint}, Ptr{Cint}, Ptr{UInt8}, Ptr{Cint}, Ptr{Cdouble}, Ptr{UInt8}, Ptr{Cint}, Ptr{Cint}, Ptr{Cdouble}), prob, p_nentities, p_nsets, coltype, colind, limit, settype, start, setcols, refval)
  	end
  	end
  	function XPRSgetglobal64(prob, p_nentities, p_nsets, coltype, colind, limit, settype, start, setcols, refval)
  	if _getversion() >= v"41.0.0"
  	return ccall((:XPRSgetmipentities64, libxprs), Cint, (XPRSprob, Ptr{Cint}, Ptr{Cint}, Ptr{UInt8}, Ptr{Cint}, Ptr{Cdouble}, Ptr{UInt8}, Ptr{Cint}, Ptr{Cint}, Ptr{Cdouble}), prob, p_nentities, p_nsets, coltype, colind, limit, settype, start, setcols, refval)
  	else
  	return ccall((:XPRSgetglobal64, libxprs), Cint, (XPRSprob, Ptr{Cint}, Ptr{Cint}, Ptr{UInt8}, Ptr{Cint}, Ptr{Cdouble}, Ptr{UInt8}, Ptr{Cint}, Ptr{Cint}, Ptr{Cdouble}), prob, p_nentities, p_nsets, coltype, colind, limit, settype, start, setcols, refval)
  	end
  	end

  You now must explicitly call XPRSgetmipentities or XPRSgetglobal, but this shouldn affect only people hacking at the C API.

I've also moved a bunch of unused stuff to src/api.jl which was never tested, so there's a risk I made a mistake during the refactoring that wasn't caught because of the lack of tests.

TODO

• Get @joaquimg to test internally

[odow]

Bump

[odow]

Bump @joaquimg