~/.gitconfig: Add a few useful git shortcuts

.gitconfig

	ba = branch -a
	praise = blame
	recent-tags = ! sh -c 'git tag --sort=-authordate | head -n5'
	release = "!r() { (test -n \"$1\" || (echo \"Missing version argument, e.g. git release 1.0.0\" && exit 1)) && git tag $1 && git push origin master $1; }; r"
	trigger-release = "!r() { (test -n \"$1\" || (echo \"Missing version argument, e.g. git trigger-release 1.0.0\" && exit 1)) && git tag trigger-release-$1 && git push origin master trigger-release-$1; }; r"
	prune-branches = "!p() { git branch -d $(git remote prune -n ${1:-origin} | sed -n \"s/.*\\[would prune\\] ${1:origin}\\///p\"); git remote prune ${1:-origin}; }; p $1"
[format]
	pretty = %C(auto)%h %Cgreen[%cr]%Creset %C(auto)(%an) %s%d
[color]