Now depends on carrot 0.10.7

contrib/requirements/default.txt

@@ -1,5 +1,5 @@
 python-dateutil
 sqlalchemy
 anyjson
-carrot>=0.10.6
+carrot>=0.10.7
 pyparsing

setup.py

@@ -129,7 +129,7 @@ except ImportError:
 install_requires.extend([
     "python-dateutil",
     "anyjson",
-    "carrot>=0.10.6",
+    "carrot>=0.10.7",
     "pyparsing",
 ])