Neon-py

- Encoder: added support for entity chaining 21

For the details you can have a look at the [diff](https://github.com/nette/neon/compare/v2.3.2...v2.3.3).

- travis: migrating to container-based infrastructure
- improved coding style
- Decoder: fixed support for hex numbers in PHP 7

For the details you can have a look at the [diff](https://github.com/nette/neon/compare/v2.3.1...v2.3.2).

- Encoder: removed trailing spaces 20

For the details you can have a look at the [diff](https://github.com/nette/neon/compare/v2.3.0...v2.3.1).

- chained syntax `first(a, b)second(1, 2)`

- Encoder: removed trailing spaces 20
- Decoder: fixed support for hex numbers in PHP 7

For the details you can have a look at the [diff](https://github.com/nette/neon/compare/v2.2.5...v2.2.6).

- travis: migrating to container-based infrastructure
- improved coding style

For the details you can have a look at the [diff](https://github.com/nette/neon/compare/v2.2.4...v2.2.5).