infinitescroll: adding check to api for manual checking
liveswap: fixing non-cachebuster path

When there's no cachebuster, an empty config object will make requirejs
freak out.
truncate: multiline ellipsis from be/
truncate: fixing loop for IE10

In IE, size measurements will be zero if measuring only spaces. We need to start
measuring from the first non-whitespace character.
social: comment and style
scrollpoint: style and comments
infinitescroll: cache curried scroll function