Add option to download x64 version of Openfire for Windows
Not sure if we should just stop providing x86 installer. Some might still want it. In that case we should add an additional download link to the Downloads page (maybe add "recommended" to it).
Should be done along with 4.1.5 (or 4.2.0) release.
PR made and can merge after release of Openfire
We can generate both with easy, so, I'd be in favor of publishing both the 32 and 64-bit installers. It doesn't cost us much, and we'll probably make at least a few people happy.