Update hdf5.md

changed line 275 from "d = d_create(fid, "b", Int, ((1000,),(-1,)), "chunk", (100,)) #-1 is equivalent to typemax(Hsize)" to "b = d_create(fid, "b", Int, ((1000,),(-1,)), "chunk", (100,)) #-1 is equivalent to typemax(Hsize)".
The reason is because lines 276 and 277 operates on b instead of d.
Merge pull request #148 from BlazinSonic/patch-1

Update hdf5.md
switch the windows binary to use winrpm

adjust bindeps usage to cache library path too
need Pkg.build("HDF5") in travis.yml
reinstate importing Homebrew on OSX
use release binaries on appveyor
Merge pull request #149 from tkelman/use-winrpm

Switch to a WinRPM binary
Fix accessing attributes of file object