Oracle implementation and connection pool implementation.

SqlBuilder was modified because Oracle doesn't support LIMIT and OFFSET keywords.
It is for testing only.
tomcat-oracle-pool-restsql.properties waqs created for testing on Tomcat (on Windows).

	new file:   src/org/restsql/core/impl/ConnectionPoolFactoryImpl.java
	new file:   src/org/restsql/core/impl/oracle/OracleSequenceManager.java
	new file:   src/org/restsql/core/impl/oracle/OracleSqlResourceMetaData.java
	new file:   src/resources/properties/tomcat-oracle-pool-restsql.properties