0.11.2

- `--tiebreak` now accepts comma-separated list of sort criteria
    - Each criterion should appear only once in the list
    - `index` is only allowed at the end of the list
    - `index` is implicitly appended to the list when not specified
    - Default is `length` (or equivalently `length,index`)
- `begin` criterion will ignore leading whitespaces when calculating the index
- Added `toggle-in` and `toggle-out` actions
    - Switch direction depending on `--reverse`-ness
    - `export FZF_DEFAULT_OPTS="--bind tab:toggle-out,shift-tab:toggle-in"`
- Reduced the initial delay when `--tac` is not given
    - fzf defers the initial rendering of the screen up to 100ms if the input
      stream is ongoing to prevent unnecessary redraw during the initial
      phase. However, 100ms delay is quite noticeable and might give the
      impression that fzf is not snappy enough. This commit reduces the
      maximum delay down to 20ms when `--tac` is not specified, in which case
      the input list quickly fills the entire screen.
