Adds .gitignore to repository to ignore temp files

The .gitignore file contains common temporary file extensions to be not
influenced by git system (not tracked nor reported or commited
unexpectedly)

	new file:   .gitignore
Fixes some graphical and animation issues

Changes cookies whidth, height and border to make a relation of ratio
1.5 between them.

Increases alpha of hovered cookies background against responses from
visitors and testers.

Changes cookies animations to a better look against responses from
visitors and testers.

Centralizes 'Contactus' page icons.

	modified:   files/icepack.css
	modified:   index.html