v1.3: very very last-minute changelog updates

url: ensure minimum components for formatting

Merge pull request libgit2#5931 from libgit2/ethomson/1.1.1

Release v1.1.1

Merge pull request libgit2#5660 from libgit2/ethomson/v1.1

libgit2 v1.1.0

Merge pull request libgit2#5542 from libgit2/ethomson/1_0_1

v1.0.1: Update the version numbers

Merge pull request libgit2#5471 from pks-t/pks/v1.0

Release v1.0

Merge pull request libgit2#5473 from libgit2/ethomson/v0.28.5

fetchhead: strip credentials from remote URL

Merge pull request libgit2#5291 from libgit2/ethomson/0_99

Release 0.99

Merge pull request libgit2#5330 from pks-t/ethomson/v0.28.4

Security release v0.28.4

Merge pull request libgit2#5329 from pks-t/ethomson/v0.27.10

Security release v0.27.10