NOISSUE fix all sorts of warnings, enable Werror and pedantic

api/logic/net/FileSink.cpp

@@ -10,12 +10,12 @@ FileSink::FileSink(QString filename)
 	:m_filename(filename)
 {
 	// nil
-};
+}
 
 FileSink::~FileSink()
 {
 	// nil
-};
+}
 
 JobStatus FileSink::init(QNetworkRequest& request)
 {

api/logic/net/MetaCacheSink.cpp

@@ -10,12 +10,12 @@ MetaCacheSink::MetaCacheSink(MetaEntryPtr entry, ChecksumValidator * md5sum)
 	:Net::FileSink(entry->getFullPath()), m_entry(entry), m_md5Node(md5sum)
 {
 	addValidator(md5sum);
-};
+}
 
 MetaCacheSink::~MetaCacheSink()
 {
 	// nil
-};
+}
 
 JobStatus MetaCacheSink::initCache(QNetworkRequest& request)
 {