Merged "read-xml-file" and "read-file" into "read-file"

* FunctionReadFile is now able to distinguish between XML files and plain text files
** it selects the appropriate course of action automatically
** reading the file as XML into the DOM or reading it as a string
* the current selection criteria is the file extension
** I am thinking about trying to import every file into the DOM and using the result state of that action as selection criteria
* Updated README.md and test cases accordingly

2 files changed, 29 insertions, 8 deletions

diff --git a/test/read_file/reference.xml b/test/read_file/reference.xml
index 0bca6f7..4500216 100644
--- a/test/read_file/reference.xml
+++ b/test/read_file/reference.xml
@@ -1,9 +1,30 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<test_case>&lt;?xml version="1.0"?&gt;
-&lt;tester&gt;
-	&lt;eintrag&gt;Hello 1&lt;/eintrag&gt;
-	&lt;eintrag&gt;Hello 2&lt;/eintrag&gt;
-	&lt;eintrag&gt;Hello 3&lt;/eintrag&gt;
-	&lt;eintrag&gt;Hello 4&lt;/eintrag&gt;
-&lt;/tester&gt;
+<test_case># Markdown Test
+
+__Lorem ipsum__ dolor sit amet, _consectetur_ adipisicing elit, sed do `eiusmod` tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
+
+&gt; Duis aute irure dolor in reprehenderit in voluptate
+&gt; velit esse cillum dolore eu fugiat nulla pariatur.
+
+Excepteur sint **occaecat** cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
+
+* Test 1
+* Test 2
+* Test 3
+* Test 4
+
+Test Test Test
+
+	template &lt;
+		typename Target,
+		std::size_t Index = 0,
+		typename Current  = std::tuple&lt;&gt;,
+		enable_if&lt;Index == std::tuple_size&lt;Target&gt;::value&gt; = 0
+	&gt;
+	inline Target construct(
+		const xalan::XPathExecutionContext::XObjectArgVectorType&amp;,
+		Current&amp;&amp; current
+	) {
+		return current;
+	}
 </test_case>
diff --git a/test/read_file/transformation.xsl b/test/read_file/transformation.xsl
index a968f35..53a815c 100644
--- a/test/read_file/transformation.xsl
+++ b/test/read_file/transformation.xsl
@@ -10,7 +10,7 @@
 <xsl:import href="[testcase.xsl]"/>
 
 <xsl:template name="implementation">
-	<xsl:variable name="result" select="InputXSLT:read-file('test.txt')"/>
+	<xsl:variable name="result" select="InputXSLT:read-file('test.md')"/>
 
 	<xsl:choose>
 		<xsl:when test="$result/self::file/@result = 'success'">