Fixed the map reader test

Not that useful, but at least it should compile. Fortunately it's still
passing. :)

tests/test_tmxmapreader.pro

@@ -1,19 +1,30 @@
+include(../src/libtiled/libtiled.pri)
+
 CONFIG += qtestlib
 TEMPLATE = app
 DEPENDPATH += .
 INCLUDEPATH += . \
-    ../src
+    ../src/tiled
+
+macx {
+    LIBS += -L$$OUT_PWD/../bin/Tiled.app/Contents/Frameworks
+} else {
+    LIBS += -L$$OUT_PWD/../lib
+}
+
+!win32:!macx {
+    QMAKE_RPATHDIR += \$\$ORIGIN/../lib
+
+    # It is not possible to use ORIGIN in QMAKE_RPATHDIR, so a bit manually
+    QMAKE_LFLAGS += -Wl,-z,origin \'-Wl,-rpath,$$join(QMAKE_RPATHDIR, ":")\'
+    QMAKE_RPATHDIR =
+}
 
 # Input
 SOURCES += test_tmxmapreader.cpp
 
 # Tiled sources to include in the test binary
-SOURCES += ../src/map.cpp \
-    ../src/mapobject.cpp \
-    ../src/layer.cpp \
-    ../src/tilelayer.cpp \
-    ../src/objectgroup.cpp \
-    ../src/tilesetmanager.cpp \
-    ../src/tileset.cpp \
-    ../src/compression.cpp \
-    ../src/tmxmapreader.cpp
+SOURCES += ../src/tiled/tilesetmanager.cpp \
+    ../src/tiled/compression.cpp \
+    ../src/tiled/tmxmapreader.cpp
+HEADERS += ../src/tiled/tilesetmanager.h