strata.js
function Strata (options) {
    this.options = options
    this.options.comparator = options.comparator || compare
    this.journalist = new Journalist(this, options)

    this.housekeeper = new Turnstile
    this.writer = new Turnstile
    this._cursors = []
}
function Strata (options) {
    this.options = options
    this.options.comparator = options.comparator || compare
    this.journalist = new Journalist(this, options)

    this.housekeeper = new Turnstile
    this.writer = new Turnstile
    this._cursors = []
}
TODO Branch and leaf size, can we just sort that out in a call to balance?