Add support for travis, coveralls and appveyor

This commit also adds further tests.

linux-test-su.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# This script is used to run the tests under linux as root
+#
+# Usage:
+#    linux-test-su.sh goPath goBinPath
+#
+# goPath is the standard GOPATH
+# goBinPath is the location of go
+#
+# Typical usage:
+#    sudo ./linux-test-su.sh $GOPATH `which go`
+
+export GOPATH=$1
+export GOROOT=`dirname $(dirname $2)`
+$GOROOT/bin/go test -v -tags su ./...