title: Import fiona fails
body: <p>I installed <code>fiona</code> using <code>conda install -c http://conda.anaconda.org/ioos fiona</code>. Then <code>import fiona</code> gives the following error message</p>
  
  <pre><code>import fiona
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "/Users/admin/anaconda/lib/python2.7/site-packages/fiona/__init__.py", line 72, in &lt;module&gt;
      from fiona.collection import Collection, BytesCollection, vsi_path
    File "/Users/admin/anaconda/lib/python2.7/site-packages/fiona/collection.py", line 7, in &lt;module&gt;
      from fiona.ogrext import Iterator, ItemsIterator, KeysIterator
  ImportError: dlopen(/Users/admin/anaconda/lib/python2.7/site-packages/fiona/ogrext.so, 2): Library not loaded: /usr/local/lib/libgif.4.1.6.dylib
    Referenced from: /Users/admin/anaconda/lib/libgdal.1.dylib
    Reason: image not found
  </code></pre>
  
  <p>I would like to understand this error message and how to fix it.</p>