Improve error messages for RefasterJS CLI.
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=77390657
Include the externs.zip file as a entry in the RefasterJS JAR
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=77394893
Add support for WheelEvent constructor arguments.
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=77430238
Switch Preconditions check to %s style
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=77433756
Add Universal Analytics and Google Tag Manager externs.
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=77436680
Remove dead code in new type inference
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=77437635
Remove duplicate extern definition of URL
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=77438347
Remove unused NodeUtil functions
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=77444496