Release v0.16.0

This release has minor changes from v0.15.0 and is compatible with Neovim 0.7.0. It is known to be incompatible with Neovim 0.7.2+. The next release will have extensive changes and will be compatible with Neovim 0.9.0.

Changes in this release:

• Some new bindings have been added for Neovim 0.7.0.
• The man-in-the-middle debugger has been rewritten to be more useful and intuitive.
• Or_current submodules have been added to Buffer, Window and Tabpage to indicate the current buffer, window, or tab respectively.
• Keymap.set now takes description and unique arguments.
• Some functions have been renamed to be clearer, and are made more ergonomic in cases where verbosity did not improve readability.
• The addition of Luaref where present is a mistake and should not be used. These references will be removed in the next version of VCaml, which will also interact better with Lua.