h2 embedded db support; updated formatting conventions not to auto-format javadoc; added hsqldb and h2 to jdbc maven pom as optional deps

added DataSourceFactory strategy; promoted EmbeddedDatabaseConfigurer strategy to public API; added ability to add any number of SQL scripts for db population

embedded database support initial commit; moved from spring-test; ResourceDatabasePopulator duplicate code with test.jdbc package that needs review

test datasource factory initial commit; needs review from Juergen on how to best make DataSource available as a Spring bean when desired

+ Updated all projects to use the re-introduced org.springframework.asm instead of org.objectweb.asm (.java, template.mf, ivy.xml, and .classpath files have been updated)
+ Finished support for @Import, including detection of circular imports

+ removed unnecessary dependency on hibernate