Merge pull request libgit2#3980 from tiennou/doc-fixes

Documentation fixes

Merge pull request libgit2#3980 from tiennou/doc-fixes

Documentation fixes

Bump version to 0.24.5

Merge pull request libgit2#4029 from libgit2/cmn/windows-no-concurren…

…t-compress

refdb: disable concurrent compress in the threading tests on Windows

Merge pull request libgit2#4007 from libgit2/cmn/bump-v25

Bump version number to v0.25

Bump version to 0.24.3

Bump version to 0.24.2

Merge pull request libgit2#3739 from ethomson/0.24.1

Backport bug fixes to 0.24

Merge pull request libgit2#3653 from libgit2/cmn/treebuilder-submodule

treebuilder: don't try to verify submodules exist in the odb

openssl: re-export the last-resort locking function

We need to include the header where we define the function. Otherwise it
won't be available on the DLL.