Mac: add readme files for WD 64bit release

Author: MykolaTryshnivskyy

platform/mac/Readme_qt4_64.txt

@@ -0,0 +1,15 @@
+Minumum Requirements
+---------------------
+* Qt Mac OS X install: 
+Download QT sources from 
+http://download.qt-project.org/official_releases/qt/4.8/4.8.5/qt-everywhere-opensource-src-4.8.5.zip
+Unzip and build sources for native (64bit) architecture
+> configure -opensource -confirm-license -nomake examples -nomake tests -release -arch x86_64
+> make
+> make install
+See more details here
+http://qt-project.org/doc/qt-4.8/install-mac.html
+
+Setup:
+------
+In command prompt run WebDriver or WebDriver_noWebkit

platform/mac/Readme_qt5_64.txt

@@ -0,0 +1,15 @@
+Minumum Requirements
+---------------------
+* Qt Mac OS X install: 
+Download QT sources from 
+http://download.qt-project.org/official_releases/qt/5.2/5.2.0/single/qt-everywhere-opensource-src-5.2.0.tar.gz
+Untar and build sources for native (64bit) architecture
+> configure -opensource -confirm-license -nomake examples -nomake tests -release -arch x86_64 -no-framework
+> make
+> make install
+See more details here
+http://qt-project.org/doc/qt-5/macosx-building.html
+
+Setup:
+------
+In command prompt run WebDriver or WebDriver_noWebkit