Force misaka version to be below 2
Force misaka version to be below 2

As it is right now, moo doesn't work on a fresh installation. You get this error when launching moo:
```
Traceback (most recent call last):
  File "/usr/local/bin/moo", line 7, in <module>
    from moo import main
  File "/usr/local/lib/python2.7/site-packages/moo/__init__.py", line 57, in <module>
    | misaka.EXT_TABLES
AttributeError: 'module' object has no attribute 'EXT_LAX_HTML_BLOCKS'
```

This is probably due to breaking changes inside misaka 2. Forcing the package to install a misaka package prior version 2 fix the problem.
pyrocat101/moo,pyrocat101/moo,pyrocat101/moo