Keep a single-line herecomment as a single-line js comment.

### Before:

```coffee
###Foobar###
###
baz
###
```

becomes

```js
/*Foobar
*/
/*
baz
*/
```

### After:

```coffee
###Foobar###
###
baz
###
```

becomes

```js
/*Foobar*/
/*
baz
*/
```

### The reason...

...for this is that some [frameworks](http://docs.turbulenz.com/starter/getting_started_guide.html#using-javascript-libraries)/[tools](http://www.stack.nl/~dimitri/doxygen/helpers.html) use specially crafted comments as directives. In the former case, since they use `/*{` and `}*/` as delimiters, it is impossible to use coffeescript because of the current behavior. With this pull-request, it becomes possible by using `###{` and `}###` on one line.

Last and least,
```js
/* Foo
*/
```
just looks wrong.