v1.3.3

Fixes

• get rid of italics in generated commit messages - they're silly
• fix unneccessary creation of base branches when updating PRs
• when updating an existing PR, merge in master commit if the commit was rebased even if the base tree did not change
• add a final rebase commit to the PR branch when landing and it is necessary to do so to not have changes in the base of this commit, that since have landed on master, displayed as part of this PR

Improvemets

• add spr version number in PR commit messages
• add --all option to spr diff for operating on a stack of commits
• updated Rust dependencies