Fixes filesystem tests sometimes failing on Windows.
Correct jcloud -> jclouds typos

Corrected with:

find -name pom.xml | xargs sed -i 's/jcloud\>/jclouds/'
Correct jcloud -> jclouds typos
Fixes broken cloudservers live tests, updates versions for images
JCLOUDS-394. Add note to ec2 README in re: live tests and new accounts