Install codecov on codecov CI targets only

.travis.yml

@@ -43,6 +43,8 @@ matrix:
         - TOOLSET=gcc
         - COMPILER=g++-6
         - CXXSTD=c++11
+      before_install:
+        - pip install --user https://github.com/codecov/codecov-python/archive/master.zip
       addons:
         apt:
           packages:
@@ -118,9 +120,6 @@ matrix:
 
     # OSX
 
-before_install: &base_before_install
-  - pip install --user https://github.com/codecov/codecov-python/archive/master.zip
-
 install:
   - export BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
   - cd ..

CHANGELOG.md

@@ -2,6 +2,7 @@ Version 144-hf1:
 
 * Update reports for hybrid assessment
 * Handle invalid deflate frames
+* Install codecov on codecov CI targets only
 
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