Hyphenation doesn't work well with code elements under Firefox

[ymeine]

(related to #11)

I faced a problem with hyphenation under Firefox, which unfortunately introduces an hyphen inside code elements, which leads to wrong content. Like this:

This is due to the following CSS rule:

_Tested under Firefox 28.0_

I would suggest either to completely remove hyphenation, or to tweak it in order to make it not happen in code elements (or alike).

[jakub-g]

IMO this is not a very big deal. When you select the text and copy, it would not be hyphenated.

Without hyphenation, the previous line would either be very stretched (if align==justify) or half-blank (if align==left) and everything will be moved to the next line.

We can live with this IMO.