Version 1.2

Make :Start idempotent, finding existing process if running.
Provide :Spawn with :Start's old, non-idempotent behavior.
Show PID of created process.
Enable compiler plugins to provide custom completion.
Allow :0Dispatch to bypass focus.
Strip out ^[[K and progress bars in tmux output.
Don't tmux pipe-pane if error format targets \r or \e.
Use wmctrl if available to enable X11 :Start!.
Use :cwindow semantics when opening/closing quickfix window.
Remove catch-all ignores from error formats.
Show shell command not Vim command in "Finished" message.
Add QuickFixCmdPre cgetfile event.
Add QuickFix dispatch-make events.
Don't fire modelines for QuickFix events.
Fix shell escaping of exported bash functions.
Fix output of :Focus when focused on Vim command.