Some more rules added to .gitignore
Comment out some code which doesn't compile.
Added command "get" to parser.
Client FileGetter
add tool FinderOfNodesContainingFile
Getting file (not finished, execution edns with exception)
Error, which caused exception, fixed, but file still is not read correctly.
Merge branch 'dev' into feature/7-downloading_file

Conflicts:
	src/main/java/parser/Parser.java
	src/main/java/parser/clicommand/ExecuteCommandVisitor.java
	src/main/java/parser/clicommand/ICliCommandVisitor.java
Added rules to .gitignore
Getting file works, but only when file is located at first node
Function get file seems to work properly.
Added messages for users (at this moment only files which are stored under root directory can be downloaded)