- Unified the HTTP client connector parameters (socket connection to 15s,
        idle socket to 60s, socket stop to 60s, max connections per host to 10,
        max total connections to 20). Suggested by Kristoffer Gronowski.
 - Fixed stop idle time.
 - refactored Firewall design to properly separate service from filter and move FirewallFilter in private packages
 - refactored Introspector class to hide private classes from public API
 - removed warnings in APISpark extension
 - refactored Firewall design to properly separate service from filter and move FirewallFilter in private packages
 - refactored Introspector class to hide private classes from public API
 - removed warnings in APISpark extension
Merge branch 'master' into apispark-2.3

Conflicts:
	modules/org.restlet.ext.apispark/src/org/restlet/ext/apispark/Introspector.java
	modules/org.restlet.ext.apispark/src/org/restlet/ext/apispark/JaxRsIntrospector.java
	modules/org.restlet.ext.apispark/src/org/restlet/ext/apispark/internal/firewall/FirewallFilter.java
	modules/org.restlet.ext.apispark/src/org/restlet/ext/apispark/internal/utils/IntrospectionUtils.java