Object factory registration fix for VS 2015

Various OS X El Capitan fixes for PHP

Removed ARM configuraton from WinRT testsuite solutions

Fix for ICE-6794 - no longer unload the test DLLs

Fix ICE-6772 - Ice/promise failure

TestUtil.py typo

Revert "Fixed ICE-6707 - default interface for discovery is now Ice.D…

…efault.Host if it is set"

This reverts commit 406e393.

Fix README.md typo and update package.json version

Update js/package.json version to 3.6.0-pre.0

Changes to support RHEL5