feat : smart card pattern matching

Use "fix" or "close" with "[card #no]".
Fix hewigovens#1

git-trello-hook.py

@@ -42,7 +42,7 @@ def handle_payload():
     commits = json_payload['commits']
     cards_in_commit = []
     cards_url_dict = {}
-    card_pattern = '(\[)(card #)([0-9]+)(\])'
+    card_pattern = '(fix|close).*(\[)(card #)([0-9]+)(\])'
 
     for commit in commits:
         results = re.findall(