changelog

2.0.0
* breaking change: dropped undocumented `pipe`
* breaking change: `equals` option can no longer be accessed directly
* `options` to set/get options
* supported options: custom `equals` and optional `label`
* support fantasy-land Setoid and Ord (aka `equals` and `lte`)
* `deferred`: deferred signal initialization

1.3.0
* dedicated µ-benchbarks
* improved update algorithm (topological sort)

1.2.0
* support ES6 and UMD/CJS module formats
* support transducer protocol
* update signal only on changed value
* removed operator skipRepeats
* fromListener: also support on/off protocol
* implemented missing dirty check
* support equals option for `of` and `link`

1.1.0
* got rid of global state (evaluation stack)
* now using topological sort to order dependent signals
* streamlined code
* improved/simplified test code

1.0.0:
* signal update with same as current value is now possible
* new operator: skipRepeats
* Signal.on: disposable side-effect

0.0.1:
* initial released version