Add git configuration

dot_gitconfig

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+[color]
+	ui = true
+	branch = always
+	status = always
+	interactive = always
+	diff = true
+[user]
+	name = Maximilian Friedersdorff
+	email = max@friedersdorff.com
+        signingkey = F5E7FCB3
+[core]
+	editor = vim
+	excludesfile = /home/max/.gitignore
+[merge]
+	tool = diffuse
+	ff = true
+[push]
+	default = simple
+[alias]
+	lg = log --graph --pretty=format:'%Cred%h%Creset %G? %ad %s %C(bold blue)<%an>%Creset %C(yellow)%d%Creset' --date=short
+	hist = log --graph --full-history --all --pretty=format:'%Cred%h%Creset %G? %ad %s %C(bold blue)<%an>%Creset %C(yellow)%d%Creset' --date=short
+	struct = log --graph --full-history --all --pretty=format:'%ad %s %Creset %C(yellow)%d%Creset' --date=short --simplify-by-decoration
+	co = checkout
+	ci = commit
+	st = status
+	br = branch
+	df = diff
+	commit = commit -S
+	vh = verify-commit HEAD
+	vc = verify-commit
+	vt = tag -v
+	tag = tag -s
+	t = tag -s
+	alias = "!req=$'\\033[0;31m=\\033[0m'; git config --get-regexp ^alias\\. | sed -e s/^alias\\.// -e \"s/\\ /\t$req\\ /\""
+	r = rebase
+	m = merge
+	pa = !git remote | xargs -L1 git push --all
+[pull]
+	rebase = false
+[sendemail]
+	smtpserver = mail.friedersdorff.com
+	smtpuser = max
+	smtpencryption = tls
+	smtpserverport = 587

dot_gitignore

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+[._]*.s[a-w][a-z]
+[._]s[a-w][a-z]
+*.un~
+Session.vim
+.netrwhist
+*~