General maintenance; NEW: git fzf

.gitconfig

@@ -1,9 +1,10 @@
 [user]
 	email = tobias.manske@mailbox.org
 	name = Tobias Manske
-	signingkey = 978D99F12D4E041F
+	signingkey = FF57750B830AA3A1
 [alias]
     lg = log --graph --abbrev-commit --decorate --format=format:'%C(bold blue)%h%C(reset) - %C(bold green)(%ar)%C(reset) %C(white)%s%C(reset) %C(dim white)- %an%C(reset)%C(bold yellow)%d%C(reset)' --all
+    fzf = "!git lg --color=always | fzf --multi --preview 'git show --color=always {+2}' --ansi"
     cu = "!git branch --merged | grep -v '\\*' | grep -v master | xargs -n 1 git branch -d"
     undo = reset HEAD~
     ignore = "!gi() { curl -L -s https://www.gitignore.io/api/$@ ; } ; gi"