Add pipe response rewriting (#794)

limited to korap host by default. Configurable via kustvakt.conf.

Change-Id: Ifb0b6470a4b1fc6db79b3bb05443f6482f4b7ea8
diff --git a/src/main/resources/kustvakt-lite.conf b/src/main/resources/kustvakt-lite.conf
index 81c9fe6..eaa8cd5 100644
--- a/src/main/resources/kustvakt-lite.conf
+++ b/src/main/resources/kustvakt-lite.conf
@@ -21,6 +21,9 @@
 # default
 kustvakt.base.url=/api/*
 
+# Pipe (Please change or commented for production!)
+pipe.host = http://localhost
+
 # default foundries for layers
 default.foundry.partOfSpeech = tt
 default.foundry.lemma = tt