Test vsftpd also without EPSV and merge results

Inspired by bde1ebadf0/.travis.yml

.run-tests

@@ -0,0 +1,11 @@
+#!/bin/sh -e
+
+for cmds in NONE EPSV; do
+  # configure vsftpd
+  sudo cp $TRAVIS_BUILD_DIR/.vsftpd.conf /etc/vsftpd.conf
+  echo cmds_denied=$cmds | sudo tee --append /etc/vsftpd.conf
+  sudo service vsftpd restart
+
+  # run tests
+  go test -v -coverprofile="$cmds.coverprofile"
+done

.travis.yml

@@ -5,10 +5,11 @@ before_install:
 - sudo mkdir --mode 0777 -p /var/ftp/incoming
 - sudo apt-get update -qq
 - sudo apt-get install -qq vsftpd
-- sudo cp $TRAVIS_BUILD_DIR/.vsftpd.conf /etc/vsftpd.conf
-- sudo service vsftpd restart
 - sudo sysctl net.ipv6.conf.lo.disable_ipv6=0
 - go get github.com/axw/gocov/gocov
 - go get github.com/mattn/goveralls
+- go get github.com/modocache/gover
 script:
-- $GOPATH/bin/goveralls -service=travis-ci
+- ./.run-tests
+- $HOME/gopath/bin/gover
+- $HOME/gopath/bin/goveralls -coverprofile=gover.coverprofile -service=travis-ci