Fixes + <<if>> change + 'nobr' tag

* Fixed a display bug with monospace passage fonts.
* Changed jQuery to version 1.10.2 instead of 2.0.3.
* Added the 'nobr' tag, which applies the effects of <<nobr>> to an
entire passage, without needing to wrap it all in the macro.
* Changed <<if>> to no longer trim whitespace from its contents - a
behaviour that few took advantage of and annoyed several others.
* Now, making a link directly to an image will simply display the image.