Py3k: update OSX installer-generator

This update makes sure that the installer won't write files
in /usr/local/bin by default. The installer also won't
replace /Library/Frameworks/Python.framework/Version/Current.

Both to ensure that the installer doens't break an existing
install of python 2.x.
diff --git a/Mac/BuildScript/build-installer.py b/Mac/BuildScript/build-installer.py
index add0512..dd606d9 100755
--- a/Mac/BuildScript/build-installer.py
+++ b/Mac/BuildScript/build-installer.py
@@ -184,6 +184,7 @@
             wrappers for lots of Mac OS X API's.
         """,
         postflight="scripts/postflight.framework",
+        selected='selected',
     ),
     dict(
         name="PythonApplications",
@@ -197,6 +198,7 @@
             It also installs a number of examples and demos.
             """,
         required=False,
+        selected='selected',
     ),
     dict(
         name="PythonUnixTools",
@@ -208,6 +210,7 @@
             is not necessary to use MacPython.
             """,
         required=False,
+        selected='unselected',
     ),
     dict(
         name="PythonDocumentation",
@@ -222,6 +225,7 @@
             """,
         postflight="scripts/postflight.documentation",
         required=False,
+        selected='selected',
     ),
     dict(
         name="PythonProfileChanges",
@@ -239,6 +243,7 @@
         topdir="/Library/Frameworks/Python.framework",
         source="/empty-dir",
         required=False,
+        selected='unselected',
     ),
     dict(
         name="PythonSystemFixes",
@@ -252,6 +257,7 @@
         topdir="/Library/Frameworks/Python.framework",
         source="/empty-dir",
         required=False,
+        selected='unselected',
     )
 ]
 
@@ -650,6 +656,8 @@
     frmDir = os.path.join(rootDir, 'Library', 'Frameworks', 'Python.framework')
     gid = grp.getgrnam('admin').gr_gid
 
+
+
     for dirpath, dirnames, filenames in os.walk(frmDir):
         for dn in dirnames:
             os.chmod(os.path.join(dirpath, dn), 0775)
@@ -696,6 +704,11 @@
 
     os.chdir(curdir)
 
+    # Remove the 'Current' link, that way we don't accidently mess with an already installed
+    # version of python
+    os.unlink(os.path.join(rootDir, 'Library', 'Frameworks', 'Python.framework', 'Versions', 'Current'))
+
+
 
 
 def patchFile(inPath, outPath):
@@ -830,7 +843,7 @@
             IFPkgFlagPackageList=[
                 dict(
                     IFPkgFlagPackageLocation='%s-%s.pkg'%(item['name'], getVersion()),
-                    IFPkgFlagPackageSelection='selected'
+                    IFPkgFlagPackageSelection=item['selected'],
                 )
                 for item in PKG_RECIPES
             ],
diff --git a/Mac/BuildScript/resources/Welcome.rtf b/Mac/BuildScript/resources/Welcome.rtf
index 96944d3..1e019bc 100644
--- a/Mac/BuildScript/resources/Welcome.rtf
+++ b/Mac/BuildScript/resources/Welcome.rtf
@@ -16,4 +16,5 @@
 \
 
 \b NOTE: 
-\b0 This package will by default update your shell profile to ensure that this version of Python is on the search path of your shell. Please deselect the "Shell profile updater" package on the package customization screen  if you want to avoid this modification. }
\ No newline at end of file
+\b0 This package will by default update not your shell profile, and will also not install\
+files in /usr/local. }
\ No newline at end of file