[mod] various fixups and improvements
-move toward css only (wip)
-replaced &nbsp table border hack for min-width attribute
-refactored table border css classes and corresponding image file names
-force link colours for better contrast
-re-style input, select, button elements
-merge connection info and link files into single 'infobar' file
-collapse infobar content without cutting off information
-add WebServer.cpp patch to allow css file to load regardless of login state in order to ensure a constitent look for the login page as well
-keep download and upload tables at the same width
-resize download field content and allow wrapping to ensure a better fit in smaller window
-change colour of table row dividers, switch to css and remove deprecated table 'rules' attribute
-misc refactoring, white-space and indentation changes
-update screenshots