Doc JIRA for Pig 0.9.1 release.
> PIG-2126 (PigStorage)
> PIG-2211 (exec command)
Apply pig-2213-patch-1.patch to TRUNK and branch-09
Use this patch for PIG-2126 and PIG-2211
Patch committed to trunk and 0.9 branch. Also change the title to 0.9.1 documentation since this is bug fix, no 0.10 new features are included.