Travis coverage: include branch coverage

Author: muggenhor

travis.sh

@@ -93,15 +93,15 @@ if [ -n "${XVFBPID:-}" ]; then
 fi
 
 if [ -n "${COVERALLS_SERVICE_NAME}" ]; then
-    lcov --directory build --capture --output-file coverage.info
-    lcov --remove coverage.info \
+    lcov --rc lcov_branch_coverage=1 --directory build --capture --output-file coverage.info
+    lcov --rc lcov_branch_coverage=1 --remove coverage.info \
         "${PWD}/3rdparty/*" \
         "${PWD}/build/*" \
         "${PWD}/examples/*" \
         "${PWD}/features/*" \
         "${PWD}/tests/*" \
         "/usr/*" \
         --output-file coverage.info
-    lcov --list coverage.info
+    lcov --rc lcov_branch_coverage=1 --list coverage.info
     coveralls-lcov coverage.info
 fi