added autocreation-dub

src/example_4/.gitignore

@@ -1,15 +0,0 @@
-.dub
-docs.json
-__dummy.html
-docs/
-/example_4
-example_4.so
-example_4.dylib
-example_4.dll
-example_4.a
-example_4.lib
-example_4-test-*
-*.exe
-*.o
-*.obj
-*.lst

src/example_4/dub.json

@@ -1,9 +0,0 @@
-{
-  "authors": [
-    "alexander"
-  ],
-  "description": "Массивы и ассоциативные массивы. Работа со словарем.",
-  "license": "proprietary",
-  "name": "example_4",
-  "targetPath": "bin"
-}

src/example_4/source/app.d

@@ -1,16 +0,0 @@
-import std.stdio, std.string;
-
-void main()
-{
-	size_t [string] dictionary;
-    foreach (line; stdin.byLine)
-    {
-        foreach (word; strip(line).split)
-        {
-            if (word in dictionary) continue;
-            auto newID = dictionary.length;
-            dictionary[word.idup] = newID;
-            writeln(newID, '\t', word);
-        }
-    }
-}