More app menu work-in-progress

[diracdeltas]

This started to conflict with the windowstore/appstore changes, so I'm opening it now.

• Refactor/cleanup menu
• cmd-L should be an app shortcut, not local shortcut, and should highlight the URL. fixes Command+L does not select URL bar text when URL bar is focused. It should. #80
• hook up shortcuts for opening files, printing, and saving

Auditors: @bbondy

[diracdeltas]

Oops, this is wrong and causing test failures. Will fix!

[diracdeltas]

cc @bridiver since tests seem to be failing inconsistently. travis reports:

  25 passing (26s)
  2 failing
  1) urlbar change tabs tab with typing clears the selected text:
      undefined: expected 'about:blank' to equal ''
      + expected - actual
      -about:blank


  2) urlbar change tabs switch to typing tab preserves typing state:
      undefined: expected 'about:blank' to equal 'a'
      + expected - actual
      -about:blank
      +a

Locally when I run npm test, I never see the first error and I only see the second one sometimes. Any ideas?

[bbondy]

Thanks I've been wanting to do this, so much cleaner.

[bbondy]

Thanks, feel free to merge.
Nice to have the open / save.

[diracdeltas]

Merging for now despite Travis since I have another branch that depends on this.

[bbondy]

np, thanks.