Before calling JAX-RS request, encode only curly braces, which are always treated by JerseyWebTarget as template variable delimiters.
Merge branch 'master' into legacy-inetnum

Conflicts:
	whois-client/src/main/java/net/ripe/db/whois/api/rest/RestClientTarget.java
	whois-client/src/main/java/net/ripe/db/whois/api/rest/RestClientUtils.java