allow resistance values < 1

git-svn-id: http://fritzing.googlecode.com/svn/trunk@6839 85f94c43-f63a-0410-9d22-21439860c375
viewswitcher update

git-svn-id: http://fritzing.googlecode.com/svn/trunk@6840 85f94c43-f63a-0410-9d22-21439860c375