WB-1009: Log4j Appender for BigQuery

key.p12
-	Key for accessing big query

pom.xml
-	Maven dependencies.

log4j.properties
-	Log4j settings

BigQueryAppender.java
-	Appender that sends logs to big query

Log4jTests.java
-	Logger test class that will delete the old Log4jTestTable and recreate it. It then logs a few events in Log4j and verifies they appear in BigQuery.

BigqueryUtils.java
-	BigQuery utils class created by Dan.
Merge branch 'feature/2014.07.1/WB-1009'