Feed instance listing - API

I think end is inclusive for Falcon commands, but in oozie it is not.

{quote}>:~$ falcon instance -type process -name <process>  -status -start 2014-09-22T14:00Z -end 2014-09-27T14:00Z{quote} 
gives status with end inclusive, however I have not checked the code.

Otherwise LGTM +1.