Fix up the plovr build rules to copy resources correctly

Hello @nicks, 

Please review the following commits I made in branch 'nick-build'.

f02684db7e09a832e0d229027934ec5b735bb5f9 (2014-04-23 12:35:46 -0400)
bump plovr version

32baa62dc1b99802f1e9b2486c91f11a8e5687ad (2014-04-23 12:34:03 -0400)
Fix up the plovr build rules to copy resources correctly

R=@nicks