templates: fix unit tests

Author: usrbinsam

CodeChallenge/templates/challenge_daily_email.html

@@ -574,7 +574,7 @@
  <table width="100%" cellpadding="0" cellspacing="0">
  <tr>
  <td class="content-block">
- <h2>{{NAME}}, today's code challenge question is unlocked!</h2>
+ <h2>{{name}}, today's code challenge question is unlocked!</h2>
  <br/>
  <p>Continue your quest by <a href="http://codewizardshq.com/codechallenge
  "> logging in.</a></p>

CodeChallenge/templates/challenge_welcome.html

@@ -292,7 +292,7 @@
  <table width="100%" cellpadding="0" cellspacing="0">
  <tr>
  <td class="content-block">
- <h2>Welcome to Defeat the Dragon, {{NAME}}!</h2>
+ <h2>Welcome to Defeat the Dragon, {{name}}!</h2>
  <br/>
  <p>Your mission is to defeat the evil dragon who has invaded CWHQ land. Only the bravest and brightest kid coders, like you, are prepared for this quest. </p>
  <p>Good luck and safe travels! </p>