Mac: Embed Info.plist in the executable.

Info.plist is needed to surpress the dock icon. Up to now, we need to have
the file available at run-time. With this change, the contents of
Info.plist are embedded in the executable at the linking stage, thus
there is no need to deploy the Info.plist file anymore.

Credit to Smokey Ardisson for the tip.

http://code.google.com/p/phantomjs/issues/detail?id=528

src/phantomjs.pro

@@ -63,6 +63,7 @@ os2:   RC_FILE = phantomjs_os2.rc
 
 mac {
     QMAKE_CXXFLAGS += -fvisibility=hidden
+    QMAKE_LFLAGS += '-sectcreate __TEXT __info_plist Info.plist'
     CONFIG -= app_bundle
 # Uncomment to build a Mac OS X Universal Binary (i.e. x86 + ppc)
 #    CONFIG += x86 ppc