add creating files, checkstyle fixed
Working version of MultiFileHashMap
Checkstyle fixed
Add empty commands
Add check for notnull property of database
change from db.file to db.dir
Update FileMap.java
Update FileMap.java

add channel.close
Update FileMap.java
Update MultiFileHashMap.java
Update MultiFileHashMap.java
Update MultiFileHashMapMain.java
Update CreateCommand.java
Update FileMap.java

use try with resources
Merge branch 'multifilehashmap' of https://github.com/lyaronskaya/fizteh-java-2014 into lyaronskaya-multifilehashmap

Conflicts:
	src/ru/fizteh/fivt/students/YaronskayaLiubov/FileMap/FileMap.java