PHOENIX-951 Don't push LIMIT as PageFilter for joins
Merge branch '3.0' of https://git-wip-us.apache.org/repos/asf/incubator-phoenix into 3.0
PHOENIX-674 Make unit test suite run faster (SamarthJain)
PHOENIX-63 Can't add null value to a secondary indexed table (SamarthJain)
apply patch PHOENIX-63