topic validator
remake validation in registration page, fix bugs in change password
modifications on spring validation
Fix small bugs with dates
remake registration.jsp,add javadoc in RoleDao, CategoryDao
fix bugs
Merge branch 'master' into roma

Conflicts:
	SSEL/src/main/java/com/softserve/dao/CategoryDao.java
	SSEL/src/main/java/com/softserve/dao/impl/CategoryDaoImpl.java
fix bugs, delete files app_log
add requests page
cosmetic changes
Merge branch 'master' of https://github.com/nromanen/Ch-025 into hash

Conflicts:
	SSEL/.classpath
merge branch
Merge branch 'master' of https://github.com/nromanen/Ch-025 into shutka
Delete default constructor
new dump and disgram
Merge branch 'hash'
merge
remake ConnectionFactory class and log4j2.xml
added datepicker
admin vs logs