Osm-conflate

_Released 2018-05-30_

* Refactored `conflate.py` into seven smaller files.
* Added a simple kd-tree based geocoder for countries and regions. Controlled by the `regions` parameter in a profile.
* You can filter by regions using `-r` argument or `"regions"` list in an audit file.
* Using the new `nwr` query type of Overpass API.
* Reduced default `max_request_boxes` to four.
* New argument `--alt-overpass` to use Kumi Systems' server (since the main one is blocked in Russia).
* Better handling of server runtime errors.
* Find matches in OSM with `--list <result.csv>`.
* Control number of nearest points to check for matches with `nearest_points` profile parameter.
* When you have dataset ID in an URL or other tag, use `find_ref` profile function to match on it.

_Released 2018-04-26_

* Fixed processing of `''` tag value.
* More that 3 duplicate points in a single place are processed correctly.
* Now you can `yield` points from a profile instead of making a list.
* Not marking nodes with `move` in the audit file as modified, unless we move them.

_Released 2018-04-19_

* Fixed bug in categories building.
* Fixed threshold for tags in duplicates check.
* Now the script prints "Done" when finished, to better measure time.

_Released 2018-03-20_

* "Similar tags" now means at least 66% instead of 50%.
* Instead of removing all duplicates, conflating them and removing only unmatched.

_Released 2018-03-15_

* Support for categories: `category_tag` and `categories` parameters in a profile.
* LibOsmium-based C++ filtering script for categories.
* More than one tag value works as "one of": `[('amenity', 'cafe', 'restaurant')]`.
* Query can be a list of queries, providing for "OR" clause. An example:

`[[('amenity', 'swimming_pool')], [('leisure', 'swimming_pool')]]`

* Parameters for profiles, using `-p` argument.
* No more default imports solely for profiles, import `zipfile` youself now.
* Remarks for source points, thanks [nixi](https://github.com/hixi).
* Better error message for Overpass API timeouts.
* Lifecycle prefixes are conflated, e.g. `amenity=*` and `was:amenity=*`.
* Dataset is checked for duplicates, which are reported (see `-d`) and removed.
* Support GeoJSON input (put identifiers into `id` property).

_Released 2017-12-29_

* Fix error in applying audit json after conflating `contact:` namespace.