Merge pull request #43 from kennethreitz/feature/git-back

Added `git-back` command for soft undos [kennethreitz]

bin/git-back

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+if test $# -eq 0; then
+  git reset --soft HEAD~1
+else
+  if `echo $1 | grep -q [^[:digit:]]`; then
+    echo $1 is not a number
+  else
+    git reset --soft HEAD~$1
+  fi
+fi

man/git-back.md

@@ -0,0 +1,38 @@
+git-back(1) -- Undo and Stage latest commits
+============================================
+
+## SYNOPSIS
+
+`git-back` [<commitcount>]
+
+## DESCRIPTION
+
+  Removes the latest commits, and add their changes to your staging area.
+
+## OPTIONS
+
+  <commitcount>
+
+  Number of commits to remove. Defaults to *1*, thus remove the latest commit.
+
+## EXAMPLES
+
+  Removes the latest commit.
+
+    $ git back
+
+  Remove the latest 3 commits:
+
+    $ git back 3
+
+## AUTHOR
+
+Written by Kenneth Reitz &lt;<me@kennethreitz.com>&gt;
+
+## REPORTING BUGS
+
+&lt;<http://github.com/visionmedia/git-extras/issues>&gt;
+
+## SEE ALSO
+
+&lt;<http://github.com/visionmedia/git-extras>&gt;