branched Sprint2 and update project version
226 progress; Items CRUD
#226 progress; Item crud, error_reason, refactoring; #243; #244; #245; #248; #249; #251 progress; #252 progress
media: mapper, dto, serivce, dao, ds, hbm, jsp, controller
multipart data
literowki
poprawa media service
rozbudowa media controller
#226 progress;
update MediaDTO
Merge branch 'Sprint2' into wip_item

Conflicts:
	src/main/java/com/blstream/myhoard/biz/model/MediaDTO.java
#226 progress;
czyszcze kod
added log4j
#266 progress
added validation
media exception
format MediaMapper
add Tag and CollectionTag tables
add sql file