rename COPYING to LICENSE

fixes #2104

src/shared/commondocparts.cc

@@ -39,7 +39,7 @@ void CommandLineParserBase::outputName(Outputter * o) const {
 void CommandLineParserBase::outputLicense(Outputter * o) const {
 	o->beginSection("License");
 	o->paragraph("Copyright (c) 2010-2014 wkhtmltopdf authors");
-	QFile file(":/COPYING");
+	QFile file(":/LICENSE");
 	file.open(QIODevice::ReadOnly | QIODevice::Text);
 	QTextStream stream(&file);
 	o->verbatim(stream.readAll());

wkhtmltopdf.qrc

@@ -1,6 +1,6 @@
 <!DOCTYPE RCC><RCC version="1.0">
   <qresource>
     <file>AUTHORS</file>
-    <file>COPYING</file>
+    <file>LICENSE</file>
   </qresource>
 </RCC>

wkhtmltox.nsi

@@ -19,7 +19,7 @@ SetCompressor /SOLID lzma
 SetCompressorDictSize 64
 RequestExecutionLevel admin
 
-!insertmacro MUI_PAGE_LICENSE "COPYING"
+!insertmacro MUI_PAGE_LICENSE "LICENSE"
 !insertmacro MUI_PAGE_DIRECTORY
 !insertmacro MUI_PAGE_INSTFILES
 !insertmacro MUI_UNPAGE_CONFIRM