readline: strip ctrl chars for prompt width calc

[OJezu]

Use regular expression to strip vt ansi escape codes from display when
calulating prompt display width and cursor position

Fixes #3860 and #5628

[Nodejs-Jenkins]

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[OJezu]

I signed the CLA earlier using the real name when submitting #5481

[OJezu]

Forced update of the branch - fixed bug that prevented handling of arrow keys etc.

[SBoudrias]

+1 Been hit by this bug earlier on. Can you think of any currently appliable fix on top of 0.10?

[OJezu]

You can git cherry-pick this commit and 94284e7 (fixing the display of wide unicode chars) to v0.10. They should apply with no problems as there have been no other changes to readline in master as far as I can tell.

[chrisdickinson]

Looks like this was merged (or at least the same functionality was introduced in another commit.) Closing.