v3.3.0

Just a minor release for this one as a lot of plugins are dropping 0.5 support, this removes 0.5 compatible code and will address the annoying deprecation warnings.

This release breaks 0.5 support. A lot of the plugins that we depend upon no longer support neovim 0.5.

Fixes:

• Fixed Dashboard showing up instead of piped contents when piping data into neovim.
• Fix sumneko_lua not auto installing
• Fix get_count deprecated messages (0.5 api)