Added some files in preparation for Assignment 2:

	new file:   a2.html
		    A stem for Assignment 2. Questions have been uploaded.

	new file:   a2_database_query_response.html
		    A page for Question 2 of Assignment 2.

	modified:   assignment_list.html
		    Insterted a link to a2.html.

	new file:   template_one-column_no_sidebar.html
		    Create an one-column no sidebar page for further usage.