added coverity_scan

.travis.yml

@@ -3,6 +3,12 @@ language: cpp
 dist: trusty
 sudo: required
 
+env:
+  global:
+   # The next declaration is the encrypted COVERITY_SCAN_TOKEN, created
+   #   via the "travis encrypt" command using the project repo's public key
+   - secure: "m89SSgE+ASLO38rSKx7MTXK3n5NkP9bIx95jwY71YEiuFzib30PDJ/DifKnXxBjvy/AkCGztErQRk/8ZCvq+4HXozU2knEGnL/RUitvlwbhzfh2D4lmS3BvWBGS3N3NewoPBrRmdcvnT0xjOGXxtZaJ3P74TkB9GBnlz/HmKORA="
+
 # from http://stackoverflow.com/a/32127147/266378
 matrix:
   include:
@@ -21,6 +27,15 @@ matrix:
         - ./json_unit "*"
         - coveralls --exclude test/src/catch.hpp --exclude test/src/unit.cpp --include src/json.hpp --gcov-options '\-lp' --gcov 'gcov-4.9'
       env: COMPILER=g++-4.9
+      addons:
+        coverity_scan:
+          project:
+            name: "nlohmann/json"
+            description: "Build submitted via Travis CI"
+          notification_email: niels.lohmann@gmail.com
+          build_command_prepend: "make clean"
+          build_command: "make doctest"
+          branch_pattern: coverity_scan
 
     - os: linux
       compiler: gcc