Buildbot 1.5.0

I am happy to announce the release of Buildbot 1.5.0

No huge feature of bug fix for this release, but some quality of life change whose details are logged as usual in our Release Notes

Thanks to our contributors for this month!

git shortlog --no-merges -ns v1.4.0...v1.5.0
    35  Craig Rodrigues
     8  Zachary Ware
     5  Mikhail Sobolev
     5  Pierre Tardy
     1  Aakash Jain
     1  Pedro Algarvio
     1  Bas Nieuwenhuizen
     1  Richard Purdie
     1  Emmanuel Bouaziz
     1  Maciek Dems