CMS-1727: Rewrite deleting of existing page templates with Hibernate
 - Use PageTemplateKey in DeletePageTemplateCommand instead of int
Merge pull request #83 from enonic/CMS-1727

CMS-1727: Rewrite deleting of existing page templates with Hibernate
CMS-2053 Advanced search with "file attachment" fails if words in search text have less than 3 characters
CMS-1728 Rewrite copy page template functionality using Hibernate
  - use PageTemplateKey for key in CopyPageTemplateCommand;
  - use UserKey in CopyPageTemplateCommand to identify the copier and rename user to copier;
Merge pull request #85 from enonic/CMS-1728

CMS-1728 Rewrite copy page template functionality using Hibernate
Merge pull request #84 from enonic/CMS-2053

CMS-2053 Advanced search with "file attachment" fails if words in search text have less than 3 characters