Description of problem:
mkdocs serve fails with an error about a missing livereload module. AFAICS LiveReload hasn't even been packaged for EPEL/RHEL (it's packaged for Fedora though).

Version-Release number of selected component (if applicable):
mkdocs-0.14.0-10.el7.noarch
Red Hat Enterprise Linux Workstation release 7.3 (Maipo)
python-2.7.5-48.el7.x86_64

How reproducible:
Always

Steps to Reproduce:
1. mkdocs init someproject
2. cd someproject
3. mkdocs serve

Actual results:
[...]
Traceback (most recent call last):
  File "/usr/bin/mkdocs", line 9, in <module>
    load_entry_point('mkdocs==0.14.0', 'console_scripts', 'mkdocs')()
  File "/usr/lib/python2.7/site-packages/click/core.py", line 716, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/click/core.py", line 696, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python2.7/site-packages/click/core.py", line 1060, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python2.7/site-packages/click/core.py", line 889, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python2.7/site-packages/click/core.py", line 534, in invoke
    return callback(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/mkdocs/cli.py", line 111, in serve_command
    livereload=livereload,
  File "/usr/lib/python2.7/site-packages/mkdocs/serve.py", line 84, in serve
    _livereload(host, port, config, builder, tempdir)
  File "/usr/lib/python2.7/site-packages/mkdocs/serve.py", line 16, in _livereload
    from livereload import Server
ImportError: No module named livereload


Expected results:

It works... livereload is packaged and a dependency of mkdocs.

Additional info:

mkdocs build works fine

Looking at `rpm -qi mkdocs`, it states "MkDocs is Python powered, this package is built with Python 3." but `/usr/bin/mkdocs` has a shebang on python2...