Merge pull request #76 from infosiftr/alpine

Add alpine to generate-stackbrew-library.sh also

generate-stackbrew-library.sh

@@ -31,7 +31,7 @@ for version in "${versions[@]}"; do
 		echo "$va: ${url}@${commit} $version"
 	done
 	
-	for variant in onbuild slim wheezy; do
+	for variant in onbuild slim alpine wheezy; do
 		[ -f "$version/$variant/Dockerfile" ] || continue
 		commit="$(cd "$version/$variant" && git log -1 --format='format:%H' -- Dockerfile $(awk 'toupper($1) == "COPY" { for (i = 2; i < NF; i++) { print $i } }' Dockerfile))"
 		echo