fn: rename from fnctl (#321)

* fn: rename from fnctl

* fn: predicting the release version for installer

* fn: predicting the release version for installer

fn/langs/ruby.go

@@ -0,0 +1,21 @@
+package langs
+
+type RubyLangHelper struct {
+}
+
+func (lh *RubyLangHelper) Entrypoint() string {
+	return "ruby func.rb"
+}
+
+func (lh *RubyLangHelper) HasPreBuild() bool {
+	return false
+}
+
+// PreBuild for Go builds the binary so the final image can be as small as possible
+func (lh *RubyLangHelper) PreBuild() error {
+	return nil
+}
+
+func (lh *RubyLangHelper) AfterBuild() error {
+	return nil
+}