translator should only be named beneath Spanish introduction

[gwijthoff]

Currently, at the base of the Issue 3 introduction in English, the translator's name is mentioned. I'm not wedded to this, but it might make sense only to include the translator's name beneath the Spanish version that he translated.

[rlskoeser]

@gwijthoff just looked at the template, it's supposed to be displaying as "Spanish translation by ..." but we're missing the english translation for Español in our translation files. Current implementation would list all translated languages and translators on all pages (once we add the languages to our translation files).

Let me know what you prefer:

• always display all translators and languages
• only display translator for the current version (with no language indicator, I guess?)

[gwijthoff]

@rlskoeser Ah, gotcha. In that case, it seems option 1 is better: always display all translators and languages.

[gwijthoff]

resolved by #292