Change from $0.10 to $0.30 per transaction

I screwed up the pricing. Samurai charges $0.10 if you have your own
merchant account, but we're using one of theirs, so the cost is $0.30
per transaction. #37

gittip/billing.py

@@ -84,7 +84,7 @@ def clear(participant_id, pmt):
  db.execute(CLEAR, (participant_id,))
 
 
-FEE = ( decimal.Decimal("0.10") # $0.10
+FEE = ( decimal.Decimal("0.30") # $0.30
  , decimal.Decimal("1.039") # 3.9%
  )
 

www/about/index.html

@@ -79,7 +79,7 @@ <h2>Details</h2>
  <p>Tips are distributed <b>every Friday</b>. Tips come out of your current
  balance (the money people have tipped you), and if that&rsquo;s not enough,
  Gittip charges your credit card to make up the difference. We add an
- additional <b>10&cent; + 3.9%</b> fee when pulling money in from your
+ additional <b>30&cent; + 3.9%</b> fee when pulling money in from your
  credit card, to cover credit card processing (as well as hosting and other
  expenses). Recipients get the <b>full face value</b> of your tip to them.
  If you tip someone $1.28, they will have $1.28 in their Gittip account
@@ -95,12 +95,12 @@ <h2>Details</h2>
  &nbsp;$12.80&nbsp;&nbsp;&nbsp;total tips<br />
  <u>-$&nbsp;5.00</u>&nbsp;&nbsp;&nbsp;current balance<br />
  &nbsp;<b>$&nbsp;7.80&nbsp;&nbsp;&nbsp;amount needed</b><br />
- <u>+$&nbsp;0.10</u>&nbsp;&nbsp;&nbsp;fee<br />
- &nbsp;$&nbsp;7.90<br />
+ <u>+$&nbsp;0.30</u>&nbsp;&nbsp;&nbsp;fee<br />
+ &nbsp;$&nbsp;8.10<br />
  <u>x&nbsp;&nbsp;1.039</u>&nbsp;&nbsp;fee<br />
- &nbsp;<b>$&nbsp;8.21&nbsp;&nbsp;&nbsp;amount charged</b><br />
+ &nbsp;<b>$&nbsp;8.42&nbsp;&nbsp;&nbsp;amount charged</b><br />
  <u>-$&nbsp;7.80</u>&nbsp;&nbsp;&nbsp;<br />
- &nbsp;$&nbsp;0.41&nbsp;&nbsp;&nbsp;total fee<br />
+ &nbsp;$&nbsp;0.62&nbsp;&nbsp;&nbsp;total fee<br />
  </p>
 
  <p>Participants can withdraw funds from their Gittip account at any