Merge pull request #762 from lucas-clemente/improve-travis-output

print commands on Travis

.travis/after_success.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-set -e
+set -ex
 
 if [ ${TESTMODE} == "unit" ]; then
   cat `find . -name "*.coverprofile"` > coverage.txt

.travis/script.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-set -e
+set -ex
 
 go get -t ./...
 if [ ${TESTMODE} == "unit" ]; then