Add deoplete.nvim integration

rplugin/python3/deoplete/sources/tmuxcomplete.py

@@ -0,0 +1,16 @@
+from .base import Base
+
+import deoplete.util
+
+class Source(Base):
+    def __init__(self, vim):
+        Base.__init__(self, vim)
+
+        self.name = 'tmux-complete'
+        self.kind = 'keyword'
+        self.mark = '[tmux]'
+        self.rank = 4
+
+    def gather_candidates(self, context):
+        return [{ 'word': x } for x in
+                self.vim.call('tmuxcomplete#gather_candidates')]