Translate, update and reposition press page

Live preview: http://bitcointest1.us.to/en/

The press page is useful while at the same time being more or less relevant for most visitors (stats seem to confirm this). It is also still not translated (#154).

This pull request allows the page to be translated for the relevant parts to make it more accessible, moves the link from the main menu to the bottom where such links appear to be located on most website, and drops the "Press coverage" subsection that is now outdated and unmaintained.

This I think allows this page to become more useful while not being resource or space consuming.

In the absence of critical feedback, this pull request will be merged on October 30th.