Tweak regifting language per @brandon_rhodes (#22)

www/bank-account.html

@@ -95,10 +95,10 @@ <h2>Your <b>bank account</b> is <span id="status">{{ status }}</span>.</h2>
     {% else %}
 
     <p>When you receive money on Gittip we
-    {% if bank_account and bank_account.is_setup %}will{% else %}can{% end %} automatically
-    deposit it into your bank account. If you don't connect a bank account then
-    your money will accumulate within Gittip, and will be used to regift
-    others.<p>
+    {% if bank_account and bank_account.is_setup %}will{% else %}can{% end %}
+    automatically deposit it into your bank account. If you don&rsquo;t connect
+    a bank account then your money will accumulate within Gittip unless you
+    regift it to others.<p>
 
     <p>Bank account information is stored and processed by <a
         href="https://www.balancedpayments.com/">Balanced</a>.</p>