Updated Windows runtime versions

Updated `installer.ps1` to the latest versions of node, PHP (dead link),
and the Java SDK.

Since the Java SDK is pulled from a "random" host, we also verify the
MD5 checksum against those published by Oracle.
Added the `Play` framework to installer.ps1
Merge pull request #381 from kppullin/win-installer-updates

Update `installer.ps1` with latest framework versions and add `Play`