Added higher ulimits and instructions to set them on the hosts
- removed password for the use user
- tweaked sshd for a quickier authentication
- increased ulimits
- improved documentation

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Added openssh-clients
Merge branch 'master' of github.com:paoloantinori/mongodb
Added full working example to create a 3 Nodes Fabric
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Increased sleep time to help with possibly slow operations
Added bit mini
Added a preset value to speedup Mongo startup
Updated Lab scripts
Changed configuration of local maven repos to add snapshots support
Enabled sudo through direct ssh invocations
Added ActiveMQ Active/Passive example
Scripts now exits in case of errors
Enabled debug mode by default. Stopped automatically default broker. Added notes