#5185: Improved logging and handling of HTTP status codes
Upgrade to commons.net:commons.net 3.6 (from 3.3) and commons-httpclient 4.5.6 (from 3.1).using HttpConnector where needed.httpConnector can now return an InputStream and not only a string.
added request url in error log
added default value to responseType variable
add private variable responseType and getter for it and code to assign it the responseType value
javadoc and some java8 stuff
HttpConnector connection leak? trying to solve by disconnecting the HttpConnection
updated imports for commons-lang3
check condition retry-after in combination with HTTP-Status 503
Moved HttpConnector in common package
update user-agent to "Mozilla/5.0 (compatible; OAI; +http://www.openaire.eu)", the word "Harvester" caused 403 status code in one case
codebase used to migrate to java8 the production system