API Client: Add further async support and sandbox mode
API: migrate to Spatial Index/Geography type for lat/lon searches, misc formatting updates. POI deduplication updates. Add exceptions for various uknown type id's in updates.
API: put OData support on hold as has been broken for a while, package updates
Import: use single instance of web client across object instance. Add support for sandboxed API mode.
Import: migrate to async API client.
Import UI: migrate to async client with sandboxed mode support
App: V4.2.3 - progress UI updates. Embedded mode auto loads map and nearest search results.
Website: add separate API docs page. Update deduplication UI. Misc updates.
Model: minor updates