updated dependencies

vendor/github.com/RoaringBitmap/roaring/README.md

@@ -147,10 +147,8 @@ formats like WAH, EWAH, Concise... Maybe surprisingly, Roaring also generally of
 - Daniel Lemire, Owen Kaser, Nathan Kurz, Luca Deri, Chris O'Hara, François Saint-Jacques, Gregory Ssi-Yan-Kai, Roaring Bitmaps: Implementation of an Optimized Software Library, Software: Practice and Experience 48 (4), 2018 [arXiv:1709.07821](https://arxiv.org/abs/1709.07821)
 -  Samy Chambi, Daniel Lemire, Owen Kaser, Robert Godin,
 Better bitmap performance with Roaring bitmaps,
-Software: Practice and Experience 46 (5), 2016.
-http://arxiv.org/abs/1402.6407 This paper used data from http://lemire.me/data/realroaring2014.html
-- Daniel Lemire, Gregory Ssi-Yan-Kai, Owen Kaser, Consistently faster and smaller compressed bitmaps with Roaring, Software: Practice and Experience 46 (11), 2016. http://arxiv.org/abs/1603.06549
-
+Software: Practice and Experience 46 (5), 2016.[arXiv:1402.6407](http://arxiv.org/abs/1402.6407) This paper used data from http://lemire.me/data/realroaring2014.html
+- Daniel Lemire, Gregory Ssi-Yan-Kai, Owen Kaser, Consistently faster and smaller compressed bitmaps with Roaring, Software: Practice and Experience 46 (11), 2016. [arXiv:1603.06549](http://arxiv.org/abs/1603.06549)
 
 ### Dependencies
 
@@ -169,6 +167,15 @@ Note that the smat library requires Go 1.6 or better.
 
   - go get -t github.com/RoaringBitmap/roaring
 
+### Instructions for contributors
+
+Using bash or other common shells:
+```
+$ git clone git@github.com:RoaringBitmap/roaring.git
+$ export GO111MODULE=on 
+$ go mod tidy
+$ go test -v
+```
 
 ### Example
 
@@ -324,7 +331,7 @@ Only the 32-bit roaring format is standard and cross-operable between Java, C++,
 
 ### Documentation
 
-Current documentation is available at http://godoc.org/github.com/RoaringBitmap/roaring and http://godoc.org/github.com/RoaringBitmap/roaring64
+Current documentation is available at https://pkg.go.dev/github.com/RoaringBitmap/roaring and https://pkg.go.dev/github.com/RoaringBitmap/roaring/roaring64
 
 ### Goroutine safety
 

vendor/github.com/RoaringBitmap/roaring/fastaggregation.go

@@ -121,6 +121,10 @@ func (x1 *Bitmap) repairAfterLazy() {
 // FastAnd computes the intersection between many bitmaps quickly
 // Compared to the And function, it can take many bitmaps as input, thus saving the trouble
 // of manually calling "And" many times.
+//
+// Performance hints: if you have very large and tiny bitmaps,
+// it may be beneficial performance-wise to put a tiny bitmap
+// in first position.
 func FastAnd(bitmaps ...*Bitmap) *Bitmap {
 	if len(bitmaps) == 0 {
 		return NewBitmap()