various fixes (#70)

- dont show ccr status if license insufficient
- add automated tests
- fix config loading
- fix search output
- fix `license show` panics
- fix `ilm show` completion
- print ask passwd prompt to stderr

pkg/es/ilm.go

@@ -67,6 +67,7 @@ func IlmNames(conf *cfg.Config) ([]string, error) {
 
 	for name := range res {
 		names[idx] = name
+		idx++
 	}
 
 	return names, nil