Alt and arrow keys insert characters into the terminal buffer instead of navigating to the begging and ends of words in the integrated terminal

Environment:
OS: OS X El Capitan
Version: VSCode 1.5.2

Repro:

1. Open Integrated terminal
2. Type 'cd ~/'
3. Press Alt + Left Arrow

Expected:
Cursor should jump to begin of ~/ so ~ is highlighted

Actual
;5D is inserted into the buffer at cursors current location