Bump version to 0.5.0

Summary: Prep for new open source oomd release

Reviewed By: htejun

Differential Revision: D29336747

fbshipit-source-id: 2e96a89d37a5f2645faed900fbbc3191820d2322

Release oomd v0.4.0

Summary: Tag the Meson build so we can build new open source packages including the latest commits pushed to oomd.

Reviewed By: danobi

Differential Revision: D21884423

fbshipit-source-id: 1cc48a21585919b085010f0ff0258fcfe72cbde3

Release oomd v0.3.2

Summary: Let's include the last couple of fixes, including the compiler fixes to make it build under Fedora Rawhide with gcc 10.

Reviewed By: danobi

Differential Revision: D19959121

fbshipit-source-id: 6e295da70c17637f545c9fc6a2b77bbd9ff1ce8f

Update version in meson (facebookincubator#120)

Summary:
Also switch to using git tag format (v0.3.0 instead of 0.3.0).
Pull Request resolved: facebookincubator#120

Reviewed By: filbranden

Differential Revision: D19910997

Pulled By: danobi

fbshipit-source-id: 35b28b091ad5ca461662e5d5ab2cfba82b086408

Move senpai to public directory

Summary: Open sourcing senpai

Reviewed By: hnaz

Differential Revision: D19870251

fbshipit-source-id: a1f399e2bf34728ab235b04d9bd1b9a08dc1a42c

Dump swap_usage in dumpOomdContext

Summary: Useful for debugging

Differential Revision: D17281035

fbshipit-source-id: c14db21448905c94e9ef8af188817aaf1f4b57cb

Remove config versioning

Summary:
Versioning configs is kind of backwards to the normal way of
doing things. People usually expect the code to be versioned, and configs
to target major release versions of code. Versioning the configs is sort
of like versioned symbols in that both parties (code and config) are
screwed in really tightly to each other.

Differential Revision: D14761961

fbshipit-source-id: f6e87aaec1473345c6f907fed0466079613ea359