increase the number of items rendered in the render queue batches - should make IITC render a bit faster, especially now that the portals have gone and instead there's a fair amount of duplicate data from links/fields across multiple data tiles
this shouldn't be needed - the stock intel map completely ignores these so they shouldn't be returned - but since niantic added mission portals to the map they bypass all portal level filtering code, for some reason
- 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
improvements could be made to our version handling (currently we just take their version string and assume it'll work, with no checks for changes - needs some thoughts on sensible handling)
- don't render portals or links outside the bounds. the backend returns lots of link, and some portals, outside of the data tiles
- moved more of the render pass start process inside startRenderPass function, rather than having to call separate functions in the data request code
also, we pause a very short time between processing sections of the queue - should help ensure things are responsive if user interacts while rendering
todo: better status bar updates while queue is being processed
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
- iitc now defaults to lower detail than the standard intel site when zoomed out - it loads much faster, shows more than enough for general use, and is less likely to trigger 'excessive requests' issues
- show more portals plugin: updated for interface changes
- show-less-portals-zoomed-out: deleted (this is now the IITC default)
- new plugin: default-intel-detail - restores the original IITC behaviour on zoom to portal detail level mapping. not recommended
for #656 number 3
