Be more careful to retry when the feature count is exceeded (#257)

* Clip before dealing with multiplier or filters in overzoom

* Be more careful to retry when the feature count is exceeded

* Adjust the estimated total feature count for the multiplier too

* Fix the feature count estimates, I think

* Pass build info into the version string

* Report the actual max zoom of any tiles as the metadata maxzoom

* Revert unneeded renaming to make the diff more readable

* Clean up the adjustments to tile sizes and feature counts

* Update version and changelog

* Dropping a feature into a multiplier cluster still effectively drops it

* Update changelog

* Rethink the changelog description

* Don't try to truncate zooms if we are still tiling at z18

tests/loop/out/-z0_-O200_--cluster-densest-as-needed.json

@@ -9,7 +9,7 @@
 "maxzoom": "0",
 "minzoom": "0",
 "name": "tests/loop/out/-z0_-O200_--cluster-densest-as-needed.json.check.mbtiles",
-"strategies": "[{\"coalesced_as_needed\":999,\"feature_count_desired\":201}]",
+"strategies": "[{\"coalesced_as_needed\":999,\"feature_count_desired\":1000}]",
 "type": "overlay",
 "version": "2"
 }, "features": [

tests/loop/out/-z0_-O200_--drop-densest-as-needed.json

@@ -9,7 +9,7 @@
 "maxzoom": "0",
 "minzoom": "0",
 "name": "tests/loop/out/-z0_-O200_--drop-densest-as-needed.json.check.mbtiles",
-"strategies": "[{\"dropped_as_needed\":999,\"feature_count_desired\":201}]",
+"strategies": "[{\"dropped_as_needed\":999,\"feature_count_desired\":1000}]",
 "type": "overlay",
 "version": "2"
 }, "features": [

tests/loop/out/-z0_-O200_--drop-fraction-as-needed.json

@@ -9,7 +9,7 @@
 "maxzoom": "0",
 "minzoom": "0",
 "name": "tests/loop/out/-z0_-O200_--drop-fraction-as-needed.json.check.mbtiles",
-"strategies": "[{\"dropped_as_needed\":999,\"feature_count_desired\":201}]",
+"strategies": "[{\"dropped_as_needed\":999,\"feature_count_desired\":1000}]",
 "type": "overlay",
 "version": "2"
 }, "features": [