blog post: transparency

 On branch master

	new file:   _content/2-blog/2013-05-25-defining_pinfinity_as_a_company.md
update book descriptions

 On branch master

	modified:   _content/3-books/1.the_gallbladder_ibook.md
	modified:   _content/3-books/2.the_appendix_ibook.md