Merge remote-tracking branch 'origin/raman/master_feeds' into zheilbron/asterix_msr_demo

Conflicts:
	asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/ConnectFeedStatement.java
	asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedUtil.java