Update requirement file for readthedocs

The idea is to bypass the dependency on scipy that is in setup.py, by - providing it explicitly in the requirement file, and - explicitly installing theano, telling setup.py to ignore "install_requirements" This is needed because the version of scipy on readthedocs is older than the required one, but it is not an issue for building the doc itself.

Update requirement file for readthedocs
8eec970d · Pascal Lamblin · b36d8608 · 8eec970d
--- a/requirement-rtd.txt
+++ b/requirement-rtd.txt
@@ -2,3 +2,5 @@ sphinx>=1.3.0
 pygments
 nose>=1.3.0
 nose-parameterized>=0.5.0
+scipy==0.13
+-e . --install-option="--no-deps"