Replace JPA/Hibernate by JDBC/JdbcTemplate

[php-coder]

• Remove entities with their repositories:
  • Category
  • Collection
  • Country
  • Currency
  • GibbonsCatalog
  • Image
  • ImageData
  • MichelCatalog
  • ScottCatalog
  • Series
  • SuspiciousActivity
  • SuspiciousActivityType
  • User
  • UsersActivation
  • YvertCatalog
  • LocalizedEntity
  • MetaInfo
  • Price
  • StampsCatalog
• Other:
  • remove Hibernate/JPA dependencies (don't forget about xml-apis)
  • remove settings from application.properties
  • remove src/main/resources/META-INF/persistence.xml
  • revise TestObjects helper
  • rename Dao interfaces (dao.JdbcFooDao -> dao.FooDao) and classes (dao.impl.JdbcFooDaoImpl -> dao.impl.FooDaoImpl)
  • update list of excluded auto configurations
  • measure speed improvements (run tests) and size of war
  • move constants from entities to Db class (?)
  • move classes from service.dto to dao.dto (cd src/main/java/ru/mystamps/web/dao; git grep -h service.dto |sort -u)
  • update README.md/NEWS.txt