BUG: allow get default value upon IndexError, GH #7725
Fixes #7725 by adding IndexError to the tuple of caught exceptions.

nice - release note for 0.15.0 pls
 Do you mean in the bug fixes section of v0.15.0.txt?
 yep 
 @dsm054 can  you look at addl comment on #7725. pls rebase as well.
 though we had already merged this, thanks @dsm054 
