v0.5.0

Release v0.5.0 (#44)

`Chainable`
- `isCountAtLeast()`, `isCountAtMost()`, `isCountExactly()`

`ChainableTree`
- `isAbove()`
- `firstWithValue()`
- `isBelow()`
- `predecessor()`, `successor()`
- `clone()`
- `notWhere()`
- depth-aware `withChildValueExtractor()`
- `withRoot()`
- `notBelowWhere()`
- `where()`

v0.4.0

Moving the project to chainables account

v0.3.0

Numerous API additions and updates.

v0.2.0

Additional API, refactorings and javadoc updates.

v0.1.0

Initial pre-release