Upgrade args4j to 2.0.26

Update closure compiler to be API compatible with the new
args4j version.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=56756001
Put the extra smart name removal run behind a flag and turn it off by default until we can investigate the failures.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=56758848