Aleksey Fomkin

I thought it would be nice to cancel asynchronous processes.

Strange error in BooPickle perf tests

1

```scala [error] D:\work\boopickle\perftests\shared\src\main\scala\boopickle\perftests\TestData.scala:8: type mismatch; [error] found : Some[A] [error] required: Option[pushka.HasDefault.Default[String]] [error] @pushka case class Book(id: String, name: String, author: String, publicationYear: Int) [error] ^ ```

```scala @pushka case class Foo(key1: Int, key2: Seq[String]) val foo = read[Foo]("""{ "key1": 10, "key2": "value" }""") assert(foo == Foo(10, "value")) ```

Sometime we need to read and write to system dependent formats.

``` scala trait Bar @pushka case class Foo[T >: Bar](x: T) ```

close #35: add the way to contol text marks from DOM

1

Should be merged after #34

Should be merged after #36

Cusom Elements should behave as regular HTML tags. It means they should dispatch events as regular tags. Codemirror have it's own event system. Signals from `editor` should be redirected.