Split "global" gitconfig into separate specific ones

dotfiles/git-universe/gitconfig → dotfiles/git-universe/after.gitconfig

-[achievement]
-    upload = true
-[push]
-    default = simple
-[user]
-    name = Alois Mahdal
 [color]
     ui = true
 [core]
 [alias]
   gr = log --graph --full-history --all --color --pretty=tformat:"%x1b[31m%h%x09%x1b[32m%d%x1b[0m%x20%s%x1b[0m"
   dc = diff --cached
-
-[test]
-    test = Basic

dotfiles/git-universe/host/azzgoat.gitconfig

+[push]
+    # need git 1.8+
+    default = simple

dotfiles/git-universe/host/hugo.gitconfig

+[achievement]
+    upload = true
+[push]
+    # need git 1.8+
+    default = simple

dotfiles/git-universe/user/aloism.gitconfig

+[user]
+    name = Alois Mahdal