v0.2.5 2020-06-01

 -  https://github.com/yaml/libyaml/pull/105
    Allow question marks in plain scalars in flow collections

 -  https://github.com/yaml/libyaml/pull/186
    Emitter: Don't output trailing space for empty scalar nodes

 -  https://github.com/yaml/libyaml/pull/185
    Emitter: Output space after an alias mapping key

 -  https://github.com/yaml/libyaml/pull/187
    Add -h and --flow (on|off|keep) to run-*-test-suite

 -  https://github.com/yaml/libyaml/pull/182
    Remove unnecessary include and malloc

 -  https://github.com/yaml/libyaml/pull/177
    Add specific files back to .gitignore

 -  https://github.com/yaml/libyaml/pull/181
    Output error position in run-parser-test-suite.c

 -  https://github.com/yaml/libyaml/pull/191
    A couple patches to improve test suite support