Handle single space at the end of a list item

Also makes tests execute cleanly on Windows

Closes #32

src/main/kotlin/nl/jworks/markdown_to_asciidoc/KotlinSerializer.kt

@@ -445,8 +445,8 @@ class ToAsciiDocSerializerKt @JvmOverloads constructor(private var rootNode: Roo
         val len = children.size
         while (i < len) {
             val c = children[i]
-            if (c is RootNode) {
-                children[i] = c.getChildren()[0]
+            if (c is RootNode && c.children.size == 1) {
+                children[i] = c.children[0]
             } else if (c.javaClass == SuperNode::class.java && c.children.size == 1) {
                 children[i] = c.children[0]
             }

src/test/java/nl/jworks/markdown_to_asciidoc/Stepdefs.java

@@ -24,14 +24,14 @@ public void the_markdown_source(String markdown) throws Throwable {
     @When("^it is converted to AsciiDoc")
     public void it_is_converted_to_asciidoc() throws Throwable {
         // Express the Regexp above with the code you wish you had
-        this.asciiDoc = Converter.convertMarkdownToAsciiDoc(markdown);
+        this.asciiDoc = Converter.convertMarkdownToAsciiDoc(markdown.replaceAll("\r\n", "\n"));
     }
 
     @Then("^the result should match the AsciiDoc source$")
     public void the_result_should_match_the_asciidoc_source(String result) throws Throwable {
         // Express the Regexp above with the code you wish you had
 
-        assertEquals(result, asciiDoc);
+        assertEquals(result.replaceAll("\r\n", "\n"), asciiDoc.replaceAll("\r\n", "\n"));
 
     }
 }

src/test/resources/nl/jworks/markdown_to_asciidoc/lists.feature

@@ -158,6 +158,17 @@ Feature: Lists
     * https://github.com/geb/geb-example-maven[http://github.com/geb/geb-example-maven]
     """
 
+  Scenario: Render a list item that ends with a blank
+    Given the Markdown source
+    """
+    -{sp}
+    """
+    When it is converted to AsciiDoc
+    Then the result should match the AsciiDoc source
+    """
+    *
+    """
+
 #@@knownissue This doesn't work. Item 4 is contains 3 para nodes instead of a code block
 #  Scenario: Render 4 numbered items with a code block
 #    Given the Markdown source