added {% blog_sections %} template to assign a context variable the sections of the blog
added {% blog_sections %} template to assign a context variable the sections of the blog

swilcox/pinax-blog,caktus/biblion,kellycreativetech/servee_blog,swilcox/pinax-blog,pinax/pinax-blog,pinax/pinax-blog,salamer/pinax-blog,easton402/pinax-blog,miurahr/pinax-blog,miurahr/pinax-blog,easton402/pinax-blog,pinax/pinax-blog,cdvv7788/pinax-blog