added requirements.txt

.travis.yml

@@ -32,7 +32,7 @@ install:
       numpy scipy nose pandas matplotlib
   - source activate test-environment
   - pip install pypandoc
-  # - pip install -r requirements.txt
+  - pip install -r requirements.txt
   - pip install .
   - pip install coveralls
 script:

requirements.txt

+numpy>= 1.7
+pandas>=0.13.1
+appdirs
+theano
+keras<1.0
\ No newline at end of file