[dlr] Better FEATURE_REFEMIT checks
[System.Core] Add dynamic interpreter
[runtime] Change MonoImage::field_cache lock from the loader lock to the image lock.
Revert "[runtime] Make mono_class_is_assignable_from lazy resolve its arguments." This broke WCF.

This reverts commit decc91e8dae894cc57a43acce0293f5b05f67be2.
[system] Add IsIPv6Teredo to System.Net.IpAddress

This adds support for checking if an IP address is an IPv6 Teredo address,
introduced in .NET Framework 4.
Merge branch 'master' of https://github.com/mono/mono