Correctly capitalize arXiv.

content/news.md

@@ -1,6 +1,6 @@
 + **01/2015** Our abstract **Death, Taxes, and Formal Verification** has been uploaded.
 + **01/2015** Our paper **A Theory AB Toolbox** has been uploaded.
 + **11/2014** Our paper **Jointly private convex programming** has been uploaded to
-  `arxiv`.
+  `arXiv`.
 + **09/2014** Our paper **Higher-order refinement types for mechanism design and
   differential privacy** has been accepted to POPL 2015!

templates/bibitemtpl.html

@@ -8,7 +8,7 @@
       In $booktitle$.</br>
     $endif$
     $if(eprint)$
-      [<a href="$url$">ArXiV</a>]
+      [<a href="$url$">arXiv</a>]
     $endif$
     $if(docs)$
       [<a href="$doclink(identifier)$">Paper</a>]