Merge pull request #1133 from pulp/bmbouter-1133133

1133133 - Improves dispatching reliability for reservation tasks
Merge branch 'bmbouter-update-dev-docs-branch-strategy' into 2.4-dev
Adds docs about branching model to dev docs.
Adds better links, and removes redundant sections.
Clarifies post-release docs changes in dev guide branching section
Merge branch '2.4.1-dev' into 2.4-dev
Merge branch '2.4-dev'