add support for smartos-x86, smartos-x64

`sunos` will be called `smartos` from v7 and forward but
older releases (LTS, 0.x, ..) will still use `sunos`.

Author: jbergstroem

transform-filename.js

@@ -11,6 +11,8 @@ const assert = require('assert')
         , 'linux-x64'          : 'linux-x64'
         , 'linux-x86'          : 'linux-x86'
         , 'linux-ppc64le'      : 'linux-ppc64le'
+        , 'smartos-x64'        : 'smartos-x64'
+        , 'smartos-x86'        : 'smartos-x86'
         , 'sunos-x64'          : 'sunos-x64'
         , 'sunos-x86'          : 'sunos-x86'
         , 'x64.msi'            : 'win-x64-msi'
@@ -115,6 +117,8 @@ if (module === require.main) {
     , { file: 'node-v0.11.9-darwin-x86.tar.gz', type: 'osx-x86-tar' }
     , { file: 'node-v0.11.9-linux-x64.tar.gz', type: 'linux-x64' }
     , { file: 'node-v0.11.9-linux-x86.tar.gz', type: 'linux-x86' }
+    , { file: 'node-v7.0.0-smartos-x64.tar.gz', type: 'smartos-x64' }
+    , { file: 'node-v7.0.0-smartos-x86.tar.gz', type: 'smartos-x86' }
     , { file: 'node-v0.11.9-sunos-x64.tar.gz', type: 'sunos-x64' }
     , { file: 'node-v0.11.9-sunos-x86.tar.gz', type: 'sunos-x86' }
     , { file: 'node-v6.7.0-aix-ppc64.tar.gz', type: 'aix-ppc64'}