Starting 3.2b5 - replace curl with Ruby open-uri
  monkey patch download command with lib/shoes/download.rb appears to work OK
  with simple-download.rb and simple-download1.rb on windows and pi and x86_64

  added shoes/http/rbload.c with stubs to match the shoes/http ABI (snort)
  it links. the main stub is called. req->uri and req->filepath look good.

  short circut data.rb to always fail on caching - rewrite to sdbm in future

  add samples/simple-download2.rb to test network image loading

  modify loose shoes (dist/) build to do the above because it's so much
  easier to deal with in gdb and the compile/test cycle. can easily fix the
  other env.rb when it's working.