Run coverage, but push to coverall only after_success

This will ensure that we get the matrix run green before pushing
results to coveralls, but also that if for some reason coveralls
has a problem, this is not making our build status red.

Signed-off-by: Ivan Kozlovic <ivan@synadia.com>

scripts/cov.sh

@@ -15,10 +15,9 @@ go test -v -failfast -covermode=atomic -coverprofile=./cov/test.out -coverpkg=./
 gocovmerge ./cov/*.out > acc.out
 rm -rf ./cov
 
-# If we have an arg, assume travis run and push to coveralls. Otherwise launch browser results
-if [[ -n $1 ]]; then
-    $HOME/gopath/bin/goveralls -coverprofile=acc.out -service travis-ci
-    rm -rf ./acc.out
-else
+# Without argument, launch browser results. We are going to push to coveralls only
+# from Travis.yml and after success of the build (and result of pushing will not affect
+# build result).
+if [[ $1 == "" ]]; then
     go tool cover -html=acc.out
 fi