Lets-plot

Added
- scale_x_reverse() / scale_y_reverse()
- Mnemonics for the `resolution` parameter in the `regions.boundaries()` function.

Fixed
- Exception when using `coord_map` with `xlim` [[173](https://github.com/JetBrains/lets-plot/issues/173)]
- Clipped tooltip [[155](https://github.com/JetBrains/lets-plot/issues/155)]
- Text on axis is clipped after hiding the tick-marks in theme [[160](https://github.com/JetBrains/lets-plot/issues/160)]
- Tooltip on x axis with no title shouldn't be above the axis line [[161](https://github.com/JetBrains/lets-plot/issues/161)]
- NPE while creating scale mapper when data series contains only nulls.
- Default Geocoding server url.

Added
- geocoding package

Fixed
- NPE on geom_tile when data contains null-s.
- The order of values in the `limits` parameter on discrete scales is ignored.
- Livemap is not shown in GGBunch.

Added
- Plugin for IntelliJ IDEA / PyCharm is available. For more info see the plugin homepage: [Lets-Plot in SciView](https://plugins.jetbrains.com/plugin/14379-lets-plot-in-sciview).

Changed
- Plots build time reduced (up to 4X)

Added
- `geom_smooth`: automatic sampling when n>1000 and the method is LOESS.

Fixed
- 'map_join' fails when the `map` argument is a dictionary [[130](https://github.com/JetBrains/lets-plot/issues/130)]

Changed
- HTML output was modified allow better integration with PyCharm.

Removed
- The deprecated method 'load_lets_plot_js()'.

Added
- Support for interactive maps.
- The `as_discrete()` function.
- Polynomial regression of an arbitrary degree (the`lm` smoothing method) in *geom_smooth*.
- `axis_tooltip`, `axis_tooltip_x`, `axis_tooltip_y` parameters in `theme()`
- Kaggle and Datalore notebook demos.

Fixed
- Severe performance degradation when using discrete scales [[119](https://github.com/JetBrains/lets-plot/issues/119)].
- Opaque background to better support PyCharm dark theme [[121](https://github.com/JetBrains/lets-plot/issues/121)].
- Auto-detection of a Kaggle environment.
- Limits on the maximum plot size [[115](https://github.com/JetBrains/lets-plot/issues/115)].
- Installation instructions for Windows users [[118 MinGW](https://github.com/JetBrains/lets-plot/issues/118)].

Changed
- More slick shape for tooltips on the axis.

Added

- `facet_wrap()` function.
- in `facet_grid()` function:
- Ascending/descending ordering of faceting values.
- Formatting of faceting values.

See: [Facets demo](https://nbviewer.jupyter.org/github/JetBrains/lets-plot-kotlin/blob/master/docs/examples/jupyter-notebooks/facets.ipynb)

- The `format` parameter in positional scales: formatting tick labels on X/Y axis. Supported types are `number`
and `date/time`.

Example:

scale_x_datetime(format="%b %Y")
scale_x_continuous(format="is {.2f}")


Demo: [Formatting demo](https://nbviewer.jupyter.org/github/JetBrains/lets-plot-kotlin/blob/master/docs/examples/jupyter-notebooks/formatting_axes_etc.ipynb)

See also: [Formatting](https://github.com/JetBrains/lets-plot-kotlin/blob/master/docs/formats.md)


- The `guides()` function [[52](https://github.com/JetBrains/lets-plot/issues/52)].

- In tooltip customization API:
- option `color` overrides the default tooltip color:

geom_xxx(tooltips=layer_tooltips().color("red"))


See: [Tooltip Customization](https://github.com/JetBrains/lets-plot-kotlin/blob/master/docs/tooltips.md).

Changed

- Built with Lets-Plot v2.0.1 (was v1.5.6).
- All Java Swing demos were updated to use new `plot components` (new in Lets-Plot v2.0.1).
- The "Minimal demo" was updated:
- [`Main.kt` (Batik)](https://github.com/JetBrains/lets-plot-kotlin/tree/master/demo/jvm-batik/src/main/kotlin/minimalDemo)
- [`Main.kt` (JavaFX)](https://github.com/JetBrains/lets-plot-kotlin/tree/master/demo/jvm-javafx/src/main/kotlin/minimalDemo)

Fixed

- `show()` should actually show a plot [[51](https://github.com/JetBrains/lets-plot-kotlin/issues/51)]
- Facet grid truncated in jupyter [[28](https://github.com/JetBrains/lets-plot-kotlin/issues/28)].

The majority of fixes in the core Lets-Plot vv 2.0.0, 2.0.1 are also applicable to this release.

See the Lets-Plot [CHANGELOG.md](https://github.com/JetBrains/lets-plot/blob/master/CHANGELOG.md).