Updated Civilopedia.txt

[belchingjester]

There were a number of annoying typos in the default civilopedia.txt - I've emailed this to Firaxis, but didn't hear back. I imagine they are busy with some of the rebalancing and other patch issues.

This has nothing to do with gameplay, just with spelling errors and inconsistencies (Fredrich vs. Friedrich Engels, Merovigian vs. Merovingian, a host of other niggling things...)

--belchingjester