Hive param substitution on Azkaban issue #145

An example of using hive param

Job file:
hiveconf.zipcode=95132

Hive script file:
select member_id, postal_code from member_table where and postal_code = '${hiveconf:zipcode}';

We could use azkaban.utils.StringUtils.SINGLE_QUOTE and azkaban.utils.StringUtils.DOUBLE_QUOTE here.  Same on line 272.