BUG: fix scalar date_parser issue in read_csv. close #3071
BUG: replace with a dict misbehaving (GH 3064), due to incorrect filtering
Merge pull request #3072 from jreback/replace3

BUG: replace with a dict misbehaving (GH 3064), due to incorrect filtering
VB: add regex filtering to test_perf.py
BLD: force numpy 1.6.1 most everywhere