Clean up spkg/bin/sage

Imported from <a href="http://trac.sagemath.org/sage_trac/ticket/13996">trac #13996</a>.



Reported by: jdemeyer

Component: scripts

CC: jhpalmieri

Report Upstream: N/A

Authors: Jeroen Demeyer

Dependencies: <a href="http://trac.sagemath.org/sage_trac/ticket/5155">trac #5155</a>, <a href="http://trac.sagemath.org/sage_trac/ticket/12719">trac #12719</a>

Work issues: 

Reviewers: Volker Braun

Merged in: sage-5.7.beta2

Attachments: <ol><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/13996/13996_help.patch">13996_help.patch: </a> by jdemeyer at 20130124T20:49:31</li><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/13996/13996_scripts_cleanup.patch">13996_scripts_cleanup.patch: </a> by jdemeyer at 20130128T13:56:03</li><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/13996/13996_cleanup_sage.patch">13996_cleanup_sage.patch: </a> by jdemeyer at 20130128T14:07:12</li></ol>