Require OSX 10.6, 64-bit

Drop support for 32-bit or pre-10.6 Macs.

Also, some of the OSX build docs hadn't been updated since the
autotools change.

share/qt/Info.plist.in

@@ -2,6 +2,14 @@
 <!DOCTYPE plist SYSTEM "file://localhost/System/Library/DTDs/PropertyList.dtd">
 <plist version="0.9">
 <dict>
+  <key>LSMinimumSystemVersion</key>
+  <string>10.6.0</string>
+
+  <key>LSArchitecturePriority</key>
+  <array>
+    <string>x86_64</string>
+  </array>
+
   <key>CFBundleIconFile</key>
   <string>bitcoin.icns</string>
 

share/qt/clean_mac_info_plist.py

@@ -1,29 +0,0 @@
-#!/usr/bin/env python
-# Jonas Schnelli, 2013
-# make sure the Bitcoin-Qt.app contains the right plist (including the right version)
-# fix made because of serval bugs in Qt mac deployment (https://bugreports.qt-project.org/browse/QTBUG-21267)
-
-from string import Template
-from datetime import date
-
-bitcoinDir = "./";
-
-inFile     = bitcoinDir+"/share/qt/Info.plist"
-outFile    = "Bitcoin-Qt.app/Contents/Info.plist"
-version    = "unknown";
-
-fileForGrabbingVersion = bitcoinDir+"bitcoin-qt.pro"
-for line in open(fileForGrabbingVersion):
-	lineArr = line.replace(" ", "").split("=");
-	if lineArr[0].startswith("VERSION"):
-		version = lineArr[1].replace("\n", "");
-
-fIn = open(inFile, "r")
-fileContent = fIn.read()
-s = Template(fileContent)
-newFileContent = s.substitute(VERSION=version,YEAR=date.today().year)
-
-fOut = open(outFile, "w");
-fOut.write(newFileContent);
-
-print "Info.plist fresh created"