PHOENIX-3223 Add `hadoop classpath` to PQS classpath when available
PHOENIX-3223 Add `hadoop classpath` to PQS classpath when available

Closes apache/phoenix#205

jfernandosf/phoenix,twdsilva/phoenix,twdsilva/phoenix,dumindux/phoenix,ankitsinghal/phoenix,jfernandosf/phoenix,growingio/phoenix,shehzaadn/phoenix,growingio/phoenix,apurtell/phoenix,Guavus/phoenix,twdsilva/phoenix,Guavus/phoenix,twdsilva/phoenix,apache/phoenix,ankitsinghal/phoenix,shehzaadn/phoenix,ohadshacham/phoenix,ohadshacham/phoenix,apurtell/phoenix,ankitsinghal/phoenix,ohadshacham/phoenix,apurtell/phoenix,jfernandosf/phoenix,Guavus/phoenix,ankitsinghal/phoenix,apache/phoenix,growingio/phoenix,apache/phoenix,apurtell/phoenix,growingio/phoenix,shehzaadn/phoenix,apurtell/phoenix,growingio/phoenix,ohadshacham/phoenix,ohadshacham/phoenix,shehzaadn/phoenix,apache/phoenix,apache/phoenix,ankitsinghal/phoenix,dumindux/phoenix,jfernandosf/phoenix,Guavus/phoenix,Guavus/phoenix,twdsilva/phoenix,jfernandosf/phoenix,shehzaadn/phoenix