Adding AWS EMR and EC2/S3 clients.
Forcing version for resources plugin to avoid http://jira.codehaus.org/browse/MRESOURCES-140.
New setup script for AWS clients.
Warning about running the test with user umask different from 0022.
Improving setenv.sh generation and PATH variable content.
Improving assembly jars generation.
Modifying INPUT variable usage in HQL scripts.
Renaming test files. Moving Maven build directory from 'target' to 'build'.