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

Makefile

@@ -62,9 +62,8 @@ install: buildlocal
 clean:
 	rm -rf $(tool) coverage.out testdata t/out pkg/es/openspec.go
 
-test: clean
-	mkdir -p t/out
-	go test ./... $(ARGS)
+test: clean buildlocal
+	make -C t test
 
 testlint: test lint