Multi-line input must be properly broken up

[jefflunt]

So, Rail's truncate helper works fine, except that I'm combining it with the simple_format helper, which inserts line breaks into the display of text.

The problem with this is that you could enter a simple note, such as

who
what
where
why
when
how

...which is six lines. The problem is, the thought box is only designed to hold five lines maximum, and so the text will overflow the div.

A smarter truncate (which truncates at either a maximum length, or maximum number of lines, whichever comes first) will be necessary to fix this.