GBatch - Simple Groovy script batch
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Features:
 - Run series of Groovy script by order

 - All scripts are shared binding context

 - Run script upto specific target

 - Support both forword and reverse batch order (setup and teardown)

Usage:
  - Create series of Groovy script which have file name format like:
       S[order]_[target name].groovy
    for setup script and
       K[order]_[target name].groovy
    for teardown script. If run in teardown mode, both S and K files have to exists

  - Create __init__.groovy script to be the first running script of both setup and teardown (if need)

  - Run setup batch:
     gbatch setup

  - Print all target names
     gbatch -p

  - Run teardown batch:
     gbatch teardown

  - Run setup scripts in other directory
     gbatch -d [script directory] setup

  - Run upto specific target name
     gbatch -t [target name] setup