title should be defined before it's referenced

When running this `meme -s Grumpy-Old-Man "Just Had Lunch" "Tummy still growling"`, you get this traceback:

```
Traceback (most recent call last):
  File "/Users/brad/.virtualenvs/meme/bin/meme", line 8, in <module>
    load_entry_point('meme==1.0.3', 'console_scripts', 'meme')()
  File "/Users/brad/.virtualenvs/meme/lib/python2.7/site-packages/meme/meme.py", line 99, in cli
    if title:
UnboundLocalError: local variable 'title' referenced before assignment
```
Merge pull request #2 from bradmontgomery/patch-1

Define title before it's referenced