Add Coverity Scan integration.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

.travis.yml

@@ -4,4 +4,19 @@ compiler:
   - gcc
   - clang
 
+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: "ikQcWMCLFoxq0+wMiqrNT5HRn0d4e3AxuF8VzNUNFrk6jUvHIufC/OKvr8VWPTjCaAQXZjWfdQAAARUXzJV10WZ7xpiv5qt4bt26Qih2AwMPMJeUOYrqXgQqhTPBp05iLYpo4ybICteXRI3zKKUA1wkdDC0jyu3rl+Fbveekbe0="
+
+addons:
+  coverity_scan:
+    project:
+      name: "troglobit/libuev"
+      description: "libuEv | Simple asynchronous event loop for Linux."
+    notification_email: troglobit@gmail.com
+    build_command:      "make"
+    branch_pattern:     master
+
 script: make

README.md

@@ -1,5 +1,7 @@
 libuEv | Simple event loop for Linux
 ====================================
+[![Build Status](https://travis-ci.org/troglobit/libuev.png?branch=master)](https://travis-ci.org/troglobit/libuev)
+[![Coverity Scan Status](https://scan.coverity.com/projects/3846/badge.svg)](https://scan.coverity.com/projects/3846)
 
 > “Why an event loop, why not use threads?”