Send PR to update dependent libraries to cursive-core 0.2

Because it'd be a nice thing to do.

- [x] [cursive-multiplex](https://github.com/deinstapel/cursive-multiplex)
- [x] [cursive-tabs](https://github.com/deinstapel/cursive-tabs)
- [x] [cursive_buffered_backend](https://github.com/agavrilov/cursive_buffered_backend)
- [x] [cursive-async-view](https://github.com/deinstapel/cursive-async-view)
- [x] [cursive-aligned-view](https://github.com/deinstapel/cursive-aligned-view)
- [x] [cursive-flexi-logger-view](https://github.com/deinstapel/cursive-flexi-logger-view)
- [x] [cursive_table_view](https://github.com/BonsaiDen/cursive_table_view)
- [x] [cursive_tree_view](https://github.com/BonsaiDen/cursive_tree_view)
- [x] [cursive_calendar_view](https://github.com/BonsaiDen/cursive_calendar_view)
- [x] [fui](https://github.com/xliiv/fui)
- [x] [askii](https://github.com/nytopop/askii)
- [x] [ncspot](https://github.com/hrkfdn/ncspot)
- [x] [dijo](https://github.com/nerdypepper/dijo)
- [x] [so](https://github.com/samtay/so)
- [x] [grin](https://github.com/mimblewimble/grin)
- [x] [herkulex_manager](https://git.florencepaul.com/gbip/herkulex_manager)
- [ ] [complate](https://github.com/replicadse/complate) (currently depends on fui, stuck on cursive 0.11)
- [ ] [saltyrtc-client-rs](https://github.com/saltyrtc/saltyrtc-client-rs) (currently using rust_sodium, stuck on lazy_static 1.2.0).