Patch

Updating bitset.

Merge pull request RoaringBitmap#304 from RoaringBitmap/dlemire/issue…

…_303

Minimal fix for 303.

Merge pull request RoaringBitmap#300 from RoaringBitmap/dlemire/trimrun

Trimming the run containers so that they use less memory and are safer.

Merge pull request RoaringBitmap#287 from jacksonrnewhouse/union2by2_…

…arm64_assembly

Union2by2 arm64 assembly

Merge pull request RoaringBitmap#286 from RoaringBitmap/dlemire/bette…

…r_detect_le

More generous detection of little endian systems

Merge pull request RoaringBitmap#283 from RoaringBitmap/dlemire/do_no…

…t_hardcode

Minor tweak.

Merge pull request RoaringBitmap#277 from jacksonrnewhouse/minimize_c…

…lones

Minimize clones (WIP)

Merge pull request RoaringBitmap#267 from RoaringBitmap/dlemire/bette…

…r_tests

Fix for issue 266.

Update README.md