Autoload macroexpansion commands
[Fix #415] Make a message gender neutral
Remove a couple of extra blank lines
[#414] Improve the tracking of ancilliary buffers
[Fix #414] Fix error on quit
Fix file header
Update .gitignore
Update README.md

Fix typo: contrition -> contribution
Merge pull request #417 from kranki/patch-1

Update README.md
Link the contribution guidelines
Extend a bit the contribution guidelines
Use cider-connected-p
Simplify a bit some code