Update and rename CategoryCrawler.py to demo-CategoryCrawler.py

Specified as a demo code for showing that our category crawler can go through German and Portuguese and pull out the gender of editors.  Time is changed to 1 year.  The original German category, Kultur - had almost 100% unknown gender.  I used Frauengeschichte ("Women's History") and that's way too big for a demo (see below for results).  So, the German example now is Frauenmuseum ("Women's Museums").

Frauengeschichte
Language: de
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m: 944
f: 2241
other: 2910
unknown: 730
total: 6825