[git] remove diff-so-fancy, add stash aliases

.gitconfig

@@ -8,7 +8,6 @@
 	safecrlf = true
 	excludesfile = /Users/alpha/.gitignore
 	quotepath = false
-	pager = diff-so-fancy | less --tabs=4 -RFX
 	sparecheckout = true
 [alias]
 	g = grep --break --heading --line-number
@@ -19,6 +18,8 @@
 	latest = for-each-ref --count=20 --sort=-committerdate --format='%(committerdate:short) %(refname:short)'
 	root = !pwd
 	push-f = push --force-with-lease
+	stsh = stash --keep-index
+	staash = stash --include-untracked
 [difftool]
 	prompt = false
 [difftool "sourcetree"]