[dependencies] Moved pillow to test requirements

Needed for matplotlib image output

conda/meta.yaml

@@ -38,7 +38,6 @@ requirements:
     - simplejson
     - six
     - beat.backend.python >=1.7.0b0
-    - pillow
 
 test:
   requires:
@@ -48,10 +47,11 @@ test:
     - ddt
     - nose
     - coverage
-    # required for plotting related tests
-    - matplotlib
     - sphinx
     - sphinx_rtd_theme
+    # required for plotting related tests
+    - matplotlib
+    - pillow
 
   imports:
     - {{ name }}

requirements.txt

@@ -9,4 +9,3 @@ pyzmq
 setuptools
 simplejson
 six
-pillow

test-requirements.txt

 matplotlib
+pillow