Use $mono_libdir instead of a hardcoded path

Mono runtime will resolve the variable to its own lib path automatically.

See #1075 (review)

Author: sevoku

Xwt.Gtk/Xwt.Gtk.dll.config

@@ -10,13 +10,12 @@
 	<dllmap os="!windows,osx" dll="libwebkitgtk-1.0-0.dll" target="libwebkitgtk-1.0.so.0"/>
 	<dllmap os="!windows,osx" dll="fontconfig" target="libfontconfig.so.1"/>
 
-	<dllmap os="osx" dll="libglib-2.0-0.dll" target="/Library/Frameworks/Mono.framework/Versions/Current/lib/libglib-2.0.0.dylib"/>
-	<dllmap os="osx" dll="libgobject-2.0-0.dll" target="/Library/Frameworks/Mono.framework/Versions/Current/lib/libgobject-2.0.0.dylib"/>
-	<dllmap os="osx" dll="libatk-1.0-0.dll" target="/Library/Frameworks/Mono.framework/Versions/Current/lib/libatk-1.0.0.dylib"/>
-	<dllmap os="osx" dll="libgtk-win32-2.0-0.dll" target="/Library/Frameworks/Mono.framework/Versions/Current/lib/libgtk-quartz-2.0.0.dylib"/>
-	<dllmap os="osx" dll="libgdk-win32-2.0-0.dll" target="/Library/Frameworks/Mono.framework/Versions/Current/lib/libgdk-quartz-2.0.0.dylib"/>
-	<dllmap os="osx" dll="libpango-1.0-0.dll" target="/Library/Frameworks/Mono.framework/Versions/Current/lib/libpango-1.0.0.dylib"/>
-	<dllmap os="osx" dll="libpangocairo-1.0-0.dll" target="/Library/Frameworks/Mono.framework/Versions/Current/lib/libpangocairo-1.0.0.dylib"/>
+	<dllmap os="osx" dll="libglib-2.0-0.dll" target="$mono_libdir/libglib-2.0.0.dylib"/>
+	<dllmap os="osx" dll="libgobject-2.0-0.dll" target="$mono_libdir/libgobject-2.0.0.dylib"/>
+	<dllmap os="osx" dll="libatk-1.0-0.dll" target="$mono_libdir/libatk-1.0.0.dylib"/>
+	<dllmap os="osx" dll="libgtk-win32-2.0-0.dll" target="$mono_libdir/libgtk-quartz-2.0.0.dylib"/>
+	<dllmap os="osx" dll="libpango-1.0-0.dll" target="$mono_libdir/libpango-1.0.0.dylib"/>
+	<dllmap os="osx" dll="libpangocairo-1.0-0.dll" target="$mono_libdir/libpangocairo-1.0.0.dylib"/>
 	<dllmap os="osx" dll="libwebkitgtk-1.0-0.dll" target="libwebkitgtk-1.0.0.dylib"/>
-	<dllmap os="osx" dll="fontconfig" target="/Library/Frameworks/Mono.framework/Versions/Current/lib/libfontconfig.1.dylib"/>
+	<dllmap os="osx" dll="fontconfig" target="$mono_libdir/libfontconfig.1.dylib"/>
 </configuration>