2.0.1

 * delete outdated entries from location_area_country
 * remove remaining uses of INTEGER, to allow node ids larger than 2^31

2.1

 * update to openlayers 2.12 (now custom built)
 * update fallback OSM boundaries
 * add support for postgresql 9.2/9.3 and postgis 2.x
 * add structured queries
 * add options for polygon output in various formats
   (geojson, svg, kml, postgis text)
 * maintenance functions for deleting objects and updating regions
   (plcae_force_update/place_force_delete)
 * web view for polygons that need deleting
 * rate limiting using memcache
 * improve layout of details page
 * add support for boundary:postal_code
 * full CORS support
 * improve parenting of POIs
 * support for extract daily diffs from Geofabrik
 * support for addresses without a street
   (addr:place and conscription number house numbers)
 * improve layout of word and search_name_* tables
 * support for US ZIP+4 codes
 * refactoring of front-end PHP code
 * lots of smaller bug fixes

 2.2

 * correct database rights for www-data
 * add timestamps for update output
 * load postgis via extension for postgis >= 2.0
 * remove non-admin boundaries from addresses
 * further improve ordering of results with same importance
 * merge addr:postcode tags into object addresses
 * include rank and importance in reverse geocode output
 * replace ST_Line_Interpolate_Point with ST_LineInterpolatePoint
  (for postgis >= 2.1)
 * update osm2pgsql to latest version
 * properly detect changes of admin_level
 * remove landuses when name is removed
 * smaller fixes