fixed documentation of connected componetns to be clearer
added a sanity check that private ssh key permission should be 400 (or else ssh and scp fail later in some cases without warning
fixing a bug related to not finding the running instance see : https://spark-project.atlassian.net/browse/SPARK-749
fixing various issues related to ec2 demo esepcially handling of ssh keys
git push
at last, fixed gl_ec2 script to work with new ami image
fixed setup-hadoop file to point to newer haddop (1.2.1)
fixing hadoop environment variables on ec2 image
fixed JAVA_HOME in hadoop-env.sh
fixed newer java version, bug in port number in mapred-core.xml
Checking for invalid alpha and beta parameters to gaurd against invalid alpha and beta initial values.
Total Subgraph Centrality
added documentation by jacob kesinger to his total subgraph centrality measure
added documentation by jacob kesinger to his total subgraph centrality measure - fixed some typos
disabled dynamic graphs because of saving vertex problem. Anyone who is interested in testing dynamic graphs should enabled them manually by uncommenting this line