Migration from RxSwift 1.9 to RxSwift 2.0

The migration should be pretty straightforward. Changes are mostly cosmetic, so all features are still there.

• Find replace all >- to .
• Find replace all variable to shareReplay(1)
• Find replace all catch to catchErrorJustReturn
• Find replace all returnElement to Observable.just
• Find replace all failWith to Observable.error
• Find replace all never to Observable.never
• Find replace all empty to Observable.empty
• Since we've moved from >- to ., free functions are now methods, so use .switchLatest(), .distinctUntilChanged(), ... instead of >- switchLatest, >- distinctUntilChanged
• We've moved from free functions to extensions so it's now [a, b, c].concat(), .merge(), ... instead of concat([a, b, c]), merge(sequences)
• Similarly, it's now subscribe { n in ... }.addDisposableTo(disposeBag) instead of >- disposeBag.addDisposable
• The method next on Variable is now value setter
• If you want to use UITableView and/or UICollectionView, this is the basic use case now:

viewModel.rows
    .bindTo(resultsTableView.rx_itemsWithCellIdentifier("WikipediaSearchCell", cellType: WikipediaSearchCell.self)) { (_, viewModel, cell) in
        cell.viewModel = viewModel
    }
    .addDisposableTo(disposeBag)

If you have any doubts about how some concept in RxSwift 2.0 works, check out the Example app or playgrounds.