PLAT-4609 - Oracle DB - Fix dialect

Fix Oracle dialect to not refer to HSQLDB
PLAT-4609 - Oracle DB - More lenient startup

Allow a database to have some missing scripts
Change exception to logging error
PLAT-4609 - Oracle DB - Tidy and fix existing

Fix existing Oracle code
PLAT-4609 - Oracle DB - Add masters

Add Oracle support for remaining masters
PLAT-4609 - Oracle DB - Fixup from PR
PLAT-4609 - Oracle DB - Fixup from PR
Merge pull request #186 from OpenGamma/topic/PLAT-4609

PLAT-4609 - Support Oracle RDBMS