Migrate CI to travis

- Add travis build file
- Use golang alpine image
- Clean scripts a little bit
- Disable CGO for test-integration >_<

script/.validate

@@ -3,23 +3,24 @@
 if [ -z "$VALIDATE_UPSTREAM" ]; then
 	# this is kind of an expensive check, so let's not do this twice if we
 	# are running more than one validate bundlescript
-	
+
 	VALIDATE_REPO='https://github.com/emilevauge/traefik.git'
 	VALIDATE_BRANCH='master'
-	
-	if [ "$TRAVIS" = 'true' -a "$TRAVIS_PULL_REQUEST" != 'false' ]; then
-		VALIDATE_REPO="https://github.com/${TRAVIS_REPO_SLUG}.git"
-		VALIDATE_BRANCH="${TRAVIS_BRANCH}"
-	fi
-	
+
+        # Should not be needed for now O:)
+	# if [ "$TRAVIS" = 'true' -a "$TRAVIS_PULL_REQUEST" != 'false' ]; then
+	# 	VALIDATE_REPO="https://github.com/${TRAVIS_REPO_SLUG}.git"
+	# 	VALIDATE_BRANCH="${TRAVIS_BRANCH}"
+	# fi
+
 	VALIDATE_HEAD="$(git rev-parse --verify HEAD)"
-	
+
 	git fetch -q "$VALIDATE_REPO" "refs/heads/$VALIDATE_BRANCH"
 	VALIDATE_UPSTREAM="$(git rev-parse --verify FETCH_HEAD)"
-	
+
 	VALIDATE_COMMIT_LOG="$VALIDATE_UPSTREAM..$VALIDATE_HEAD"
 	VALIDATE_COMMIT_DIFF="$VALIDATE_UPSTREAM...$VALIDATE_HEAD"
-	
+
 	validate_diff() {
 		if [ "$VALIDATE_UPSTREAM" != "$VALIDATE_HEAD" ]; then
 			git diff "$VALIDATE_COMMIT_DIFF" "$@"