Add window and incognito options for createTab.

Examples:

    # Just create new windows
    map X createTab window
    map X createTab incognito

    # Create windows with URLs
    map X createTab window https://developer.chrome.com/home https://github.com/philc/vimium
    map X createTab window URL1 URL2 URL3

`2X` creates two new windows, each with all of the indicated URLs.

Fixes #2825.

0 files changed, 0 insertions, 0 deletions