Prompt-toolkit

Fixes:
- Handle several bugs in Jedi.
- Correctly handle sys.argv when pt(i)python is started with --interactive.
- Support for 24bit true color.
- Take compiler flags into account for ptipython.

Fixes:
- Consider input multiline when there's a colon at the end of the line.
- Handle bug in Jedi.
- Enable search bindings in history browser.

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New features:
- Handling of the insert key in Vi mode.
- Added 'zt' and 'zb' Vi key bindings.
- Added delete key binding for deleting selected text.
- Select word below cursor on double mouse click.
- Added `wrap_lines` option to TokenListControl.
- Added `KeyBindingManager.for_prompt`.

Fixes:
- Fix in rendering output.
- Reset renderer correctly in run_in_terminal.
- Only reset buffer when using `AbortAction.RETRY`.
- Fix in handling of exit (Ctrl-D) key presses.
- Fix in `CompleteEvent`. Correctly set `completion_requested`.

Backwards-incompatible changes:
- Renamed `ValidationError.index` to `ValidationError.cursor_position`.
- Renamed `shortcuts.get_input` to `shortcuts.prompt`.
- Return empty string instead of None in
`Document.current_char`/`char_before_cursor`.

New features:
- Mouse support
- Fish style auto suggestion.
- Optionally disabling of line wraps.
- Use Python3Lexer for Python 3.