Updating to new OTS repo from https://github.com/khaledhosny/ots.git

INSTALL

-How to build (using scons, on Linux):
-
- $ cd ots/test/
- $ sudo apt-get install scons g++ libfreetype6-dev
- $ scons
-
 How to build (using gyp):
 
   (Note: test programs which require gtest can't build with gyp for now)
 
-  1. If you are building OTS on Windows, download zlib from
-     http://www.zlib.net/ and put them in third_party/zlib.
+  1. If you are building OTS on Windows, download both the source
+     code and compiled driver for zlib from http://www.zlib.net/
+     and put them in third_party/zlib.
 
-  2. Run gyp_ots
+  2. If you are building from cloned Git repository, make sure to update the
+     submodules as well:
 
-    $ ./gyp_ots
+     $ git submodule init
+     $ git submodule update
+
+  3. Run gyp_ots
+
+    $ python gyp_ots
 
     This will fetch gyp and generate build files. By default, following
     files will be generated:
       - MSVS solution file on Windows
       - Xcode project file on Mac
       - Makefile on Linux
 
     If you want to generate Makefile on Mac, you can use -f option:
 
-    $ ./gyp_ots -f make
+    $ python gyp_ots -f make
 
-  3. Build OTS
+  4. Build OTS
 
     Using MSVS:
-      Open ots-standalone.sln and build targets.
+      Open ots-standalone.sln and build the solution.
 
     Using Xcode:
       $ xcodebuild -target ots-standalone.xcodeproj -target all
 
     Using Makefile:
       $ make