Options refactoring across all the codebase, the change is backward compatible
a set of fixes after the refactoring, updated test too
Fixes on streaming, be consistent with old getopt function
more fixes related to refactoring
Fixed modified behavior on some conditionals that were wrong refactored
lower() can't be done over the object itself, just for checking if belong to the shortcuts
Finished options refactor.
version bump
fix option handling in unix backend cat method (fixes #54)
adapt Job's run method to fix error reporting (fixes #56)
version bump
preserve order of option values (fixes #57)
version bump
Quick fix for CDH4 / MRv2.

This adds a -hadooplib command-line switch to tell dumbo where
hadoop-streaming.jar is stored, along with an addition to the jar search path.
It also uses 'hadoop fs' instead of 'hdfs dfs' since it's easier to find.
Don't require -hadooplib.

This should still work for CDH3 where you don't need a separate -hadooplib.
add libdirs parameter to findjars function
simplify/cleanup listing code in cat function
version bump
Fix #60 Added cleanup functionality
Merge pull request #61 from mshevelev/cleanup

Fix #60 Added cleanup functionality