chore(ci): depend on "leaks" smmap branch

Author: ankostis

.appveyor.yml

@@ -38,6 +38,7 @@ install:
         git config --global user.name "Travis Runner"
 
     - pip install -e .
+    - pip install -I git+https://github.com/ankostis/smmap.git@leaks
 
 build: false
 

.travis.yml

@@ -12,6 +12,7 @@ git:
   depth: 1000
 install:
   - pip install coveralls
+  - pip install -I git+https://github.com/ankostis/smmap.git@leaks
 script: 
   - ulimit -n 48
   - ulimit -n