Merge pull request #168 from JuliaParallel/anj/05

A few fixes for Julia 0.5.

Author: eschnett

src/cman.jl

@@ -474,7 +474,7 @@ end
 function mpi_do(mgr::MPIManager, expr)
     !mgr.initialized && wait(mgr.cond_initialized)
     jpids = keys(mgr.j2mpi)
-    refs = cell(length(jpids))
+    refs = Array(Any, length(jpids))
     for (i,p) in enumerate(filter(x -> x != myid(), jpids))
         refs[i] = remotecall(expr, p)
     end

src/mpi-base.jl

@@ -4,7 +4,7 @@ typealias MPIDatatype Union{Char,
                             Float32, Float64, Complex64, Complex128}
 typealias MPIBuffertype{T} Union{Ptr{T}, Array{T}, Ref{T}}
 
-if VERSION >= v"0.5"
+if VERSION >= v"0.5.0-"
     # TODO: Use Compat for this
     fieldoffsets{T}(::Type{T}) = Int[fieldoffset(T, i) for i in 1:nfields(T)]
 end