added some role function

*added admin method:
/rest/admin/edit
/rest/admin/ban
/rest/admin/unban
*added edit users:
/rest/useredit
*added "delete audio" method (admin, moderator support):
/rest/file/delete
*added "edit audio" method (admin, moderator support)
/rest/file/edit
*update check method:
/rest/test/check
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/BusinessLogic/FileOperation.java
	src/rest/file/FileService.java