Enable httpfs using tomcat@ systemd service
Merge branch 'httpfs'
Fixed install location of hadoop-common jar on F20 and removed deleting
of the tomcat-juli jars.  They are needed on F20
Fixed hadoop-yarn-server-tests being provided by tests and yarn
packages (BZ1056521)
Removed httpfs service file. It's not needed anymore
Bumped spec to 2.2.0-4