Added jar persistence to MySQL
Merge pull request #55 from spark-jobserver/ha_jars

Added jar persistence to mysql
Updated JobSQLDAO test config file due to recent JAR persistence changes.
Merge pull request #58 from ooyala/ha_jars_test

Updated JobSQLDAO test config file due to recent JAR persistence changes...
Merge remote-tracking branch 'ooyala/master'
Persisted job context configuration.