polib: update to latest release 1.0.7 (upstream rev d75ce6dbbc2a) # no-check-commit third-party code that doesn't match our style Differential Revision: https://phab.mercurial-scm.org/D5001

tests: glob away some annoying py3 differences Differential Revision: https://phab.mercurial-scm.org/D4994

tests: fix a repr on python3 in test-extension.t Differential Revision: https://phab.mercurial-scm.org/D4993

tests: so many b prefixes in test-extension.t # skip-blame because it's b prefixes Differential Revision: https://phab.mercurial-scm.org/D4992

tests: ensure print() statements in test-extension.t all flush Differential Revision: https://phab.mercurial-scm.org/D4991

revlog: update pure nodecache start lookup offset on insertion test-storage.py is failing in pure builds because the population of the node cache isn't accounting for the new starting offset after a revlog insertion. This commit updates the node cache start offset to account for insertions. I'm not 100% convinced this is the ideal solution. But it works and seems correct. Differential Revision: https://phab.mercurial-scm.org/D4996

exchangev2: use filesdata filesdata is a more efficient mechanism for bulk fetching files data for a range of changesets. Let's use it in exchangev2. With this change, a client performing a full clone of mozilla-unified transmits substantially fewer bytes across the wire: before: 139,124,863 bytes sent after: 20,522,499 bytes sent The bulk of the remaining bytes is likely the transfer of ~1M nodes for changesets and manifests. We can eliminate this by making requests in terms of node ranges instead of explicit node lists... Differential Revision: https://phab.mercurial-scm.org/D4982