Merge remote-tracking branch 'upstream/master'
shell second commit. Interface added, Ifs replaced with HashMap
New version
Added MultiFileHashMap
checkstyle
Working version of MultiFileHashMap
Checkstyle fixed
Add empty commands
Add check for notnull property of database
FileMap 1.1

Fixed DataBase.java
ScannerProblemUpdate
Update DataBase.java
MultiFileMap added
some private methods changed to public to use in MultiFileMap
changed
+ replaced
я думала,что exit только для интерактивного режима...
Fixes for delete 2
Merge pull request #223 from Sarkin/master

Кинан Альсармини, 394 группа, Filemap
and replaces again..