New CSS classes for text alignment, nowrap, empty table cell, lighter
text.
Unnecessary or non standard html elements and attributes like "width",
"nowrap", "nobr", "b" removed or replaced. COLGROUP section for each table
added.
Merge branch 'html_strict'

Conflicts:
	img/style.css
	templates/default/balancelist.html
	templates/default/nodelist.html
Merge pull request #148 from maciejlew/master

Nowe klasy CSS, uporządkowanie kilku tabel.
the same networks bound to different hosts can overlap
connection beetween network and nodes
we're a little bit closer to binding node ip addresses to the same ip network but from different hosts
watch out for public ip addresses
network selection for node and netdev ip addresses
network selection for node and netdev ip addresses
show network for nodes
small fixes
small visual fix
adjusted to last changes
Merge branch 'master' of https://github.com/lmsgit/lms