problem with mark-mode

[liadbiz]

hi.
this is an awesome package. almost everything works fine. but there is one problem accured to me when i use this package.
Problem is that when i type ctrl+space to mark some text, there are no highliting on the marked text. and alt-w triggers a copy error.

my environment:
vscode version 1.8.1
ubuntu kylin 16.04

thanks!

[donovankim]

+1

[liadbiz]

@hiro-sun
Do you still working on this repo?