[split] finagle-core: fix build.properties location for maven builds
[split] finagle-core: fix build.properties location for maven builds

Problem

After upgrading to scala 2.10, maven builds would no longer report their
finagle version.  This was because the build.properties file moved to
com/twitter/finagle-core_2/10/build.properties while for sbt builds it
still was com/twitter/finagle-core/build.properties

Solution

Explicitly specify the package name for the build.properties plugin to
go where sbt (and non crossversioned builds) place it.

RB_ID=472923

rjbhewei/finagle,almendar/finagle,LithiumTD/finagle,kingtang/finagle,rjbhewei/finagle,almendar/finagle,almendar/finagle,mkhq/finagle,fengshao0907/finagle,suls/finagle,rodrigodealer/finagle,rodrigodealer/finagle,jay-johnson/finagle,kingtang/finagle,a-manumohan/finagle,jamescway/finagle,luciferous/finagle,luciferous/finagle,mosesn/finagle,nomadlabs/finagle,folone/finagle,kristofa/finagle,LithiumTD/finagle,latur19318/finagle,twitter/finagle,OopsOutOfMemory/finagle,lucaslanger/finagle,liamstewart/finagle,kumasento/finagle,kumasento/finagle,rodrigodealer/finagle,jamescway/finagle,sveinnfannar/finagle,mosesn/finagle,rjbhewei/finagle,liamstewart/finagle,thirstycrow/finagle,sveinnfannar/finagle,a-manumohan/finagle,jamescway/finagle,kingtang/finagle,cogitate/twitter-finagle-uuid,mkhq/finagle,jamescway/finagle,sveinnfannar/finagle,BuoyantIO/finagle,a-manumohan/finagle,nkhuyu/finagle,lysu/finagle,latur19318/finagle,fengshao0907/finagle,koshelev/finagle,mosesn/finagle,kumasento/finagle,jpederzolli/finagle,Krasnyanskiy/finagle,folone/finagle,kingtang/finagle,nkhuyu/finagle,kristofa/finagle,cogitate/twitter-finagle-uuid,twitter/finagle,nkhuyu/finagle,svetlyak40wt/finagle,luciferous/finagle,olix0r/finagle,travisbrown/finagle,jay-johnson/finagle,kumasento/finagle,scorpiovn/finagle,rojanu/finagle,jay-johnson/finagle,jpederzolli/finagle,chen0031/finagle,bruceluo/finagle,lukiano/finagle,folone/finagle,jay-johnson/finagle,rojanu/finagle,kristofa/finagle,adriancole/finagle,lysu/finagle,mosesn/finagle,sveinnfannar/finagle,BuoyantIO/finagle,suls/finagle,zfy0701/finagle,twitter/finagle,olix0r/finagle,cogitate/twitter-finagle-uuid,rojanu/finagle,lukiano/finagle,mkhq/finagle,lucaslanger/finagle,adriancole/finagle,zfy0701/finagle,OopsOutOfMemory/finagle,adriancole/finagle,scorpiovn/finagle,kingtang/finagle,nomadlabs/finagle,liamstewart/finagle,a-manumohan/finagle,lysu/finagle,thirstycrow/finagle,almendar/finagle,scorpiovn/finagle,jpederzolli/finagle,suls/finagle,fengshao0907/finagle,LithiumTD/finagle,cogitate/twitter-finagle-uuid,lysu/finagle,jpederzolli/finagle,jeremyrsmith/finagle,jpederzolli/finagle,scorpiovn/finagle,travisbrown/finagle,svetlyak40wt/finagle,latur19318/finagle,koshelev/finagle,Krasnyanskiy/finagle,jeremyrsmith/finagle,OopsOutOfMemory/finagle,jeremyrsmith/finagle,koshelev/finagle,spockz/finagle,bruceluo/finagle,BuoyantIO/finagle,svetlyak40wt/finagle,LithiumTD/finagle,rojanu/finagle,kristofa/finagle,kumasento/finagle,travisbrown/finagle,Krasnyanskiy/finagle,lukiano/finagle,BuoyantIO/finagle,rojanu/finagle,kristofa/finagle,koshelev/finagle,bruceluo/finagle,rjbhewei/finagle,Krasnyanskiy/finagle,spockz/finagle,bruceluo/finagle,latur19318/finagle,luciferous/finagle,liamstewart/finagle,olix0r/finagle,BuoyantIO/finagle,thirstycrow/finagle,rodrigodealer/finagle,svetlyak40wt/finagle,mkhq/finagle,lukiano/finagle,zfy0701/finagle,adriancole/finagle,fengshao0907/finagle,adriancole/finagle,spockz/finagle,lukiano/finagle,BuoyantIO/finagle,koshelev/finagle,spockz/finagle,chen0031/finagle,nomadlabs/finagle,suls/finagle,suls/finagle,travisbrown/finagle,chen0031/finagle,folone/finagle,OopsOutOfMemory/finagle,jeremyrsmith/finagle,nkhuyu/finagle,adriancole/finagle,koshelev/finagle,sveinnfannar/finagle,sveinnfannar/finagle,rodrigodealer/finagle,twitter/finagle,nomadlabs/finagle,liamstewart/finagle,twitter/finagle,luciferous/finagle,Krasnyanskiy/finagle,jeremyrsmith/finagle,nkhuyu/finagle,LithiumTD/finagle,travisbrown/finagle,OopsOutOfMemory/finagle,lucaslanger/finagle,jamescway/finagle,lukiano/finagle,mkhq/finagle,thirstycrow/finagle,svetlyak40wt/finagle,spockz/finagle,latur19318/finagle,lucaslanger/finagle,chen0031/finagle,a-manumohan/finagle,spockz/finagle,bruceluo/finagle,thirstycrow/finagle,scorpiovn/finagle,fengshao0907/finagle,zfy0701/finagle,olix0r/finagle,zfy0701/finagle,nomadlabs/finagle,folone/finagle,mosesn/finagle,jay-johnson/finagle,rjbhewei/finagle,cogitate/twitter-finagle-uuid,almendar/finagle,chen0031/finagle,lysu/finagle,lucaslanger/finagle,luciferous/finagle,mkhq/finagle