0.2.9

• Add an argument to lsc#edit#findCodeActions to pass a callback to choose an
  action.
• Save and restore window view when applying a workspace edit.
• Bug fix: Handle zero width edits at the end of a line.
• Add support for textDocument/rename.
• Support TextEdits in non-current buffers.
• Add lsc#diagnostics#count()
• Add :LSClientAllDiagnostics which populates the quickfix list with
  diagnostics across all files that have been sent by any server.
• Bug fix: Don't make callback functions global.
• Reduce performance impact of a large number of files with empty diagnostics.
• Allow message_hooks values to be a dict which gets merged into params.
  Supports inner values which are functions that get called to resolve values.
• Support highlights for multi-line diagnostics.
• Split up large messages into chunks to avoid potential deadlocks where output
  buffer becomes full but it isn't read.
• Improve performance of incremental diff.
• Print messages received on stderr.
• Don't open an empty quickfix list when no references are found.
• Don't mask hlsearch with diagnostics.