use more specific VERSION cutoff for converting .| result to BitArray

worth noting the method definition of this as broadcast is implemented by Compat on 0.5
JuliaLang/Compat.jl#306

src/mesh_tools/fem_boundary.jl

@@ -42,7 +42,7 @@ function findboundary(elem::AbstractArray;bdflag=[])
  bdnode = find(is_bdnode)
  end
  is_bdelem = is_bdnode[elem[:,1]] .| is_bdnode[elem[:,2]] .| is_bdnode[elem[:,3]]
- if VERSION < v"0.6-"
+ if VERSION < v"0.6.0-dev.1632" # Julia PR #17623 changed the result of broadcast(|, ...) from Array{Bool} to BitArray
  is_bdelem = convert(BitArray,is_bdelem)
  end
  return(bdnode,bdedge,is_bdnode,is_bdelem)