- change TILES_PER_REQUEST to 25, instead of 10 - to match current stock intel site
- modify the zoom level faking IITC does. it still makes good use of IITC's caching, but no longer switches to a zoom level with larger tiles. recent changes to tile parameters for L8 portals on the standard intel site suggests that it's nicer to the servers to request more, but smaller, tiles, than fewer but larger ones
- restored the 'show less portals when zoomed out' plugin. however, this works differently now. rather than faking the zoom level for larger tiles, it now effectively applies the portal level filter used by the standard site. just as many requests as stock, but much smaller responses with fewer portals, so faster rendering
also, default-intel-detail and show-more-portals plugins fixed - the logic has been moved into IITC core, with the plugins just setting flags to change behaviour
this should also prevent mixed release plugins/test IITC builds causing issues with it's 'show more portals' plugin
further changes are planned - by lying to the backend about the map zoom to optimise the portal detail level (density) returned and make better use of the data cache. needs some practical experimentation to get good adjustments, and a cleaner API for these plugins
