added atlas title on hover to box on atlases.php
blue background and white border on hover for atlases.php boxes
minimum box size of 20x20 on atlases.php map
pulling only 6 atlases from the DB for atlas.php's 'nearby'
nearby atlas icons in atlas.php are 140x140 and centered
Merge branch 'mike'

Conflicts:
	site/templates/atlases.html.tpl
added a loose style from Mike's merge
fixed bad font-family in #hdr