Fixed capitalization of Application Support, which causes problems for people with a case sensitive OS X file system

src/shared.py

@@ -39,7 +39,7 @@ def lookupAppdataFolder():
     from os import path, environ
     if sys.platform == 'darwin':
         if "HOME" in environ:
-            dataFolder = path.join(os.environ["HOME"], "Library/Application support/", APPNAME) + '/'
+            dataFolder = path.join(os.environ["HOME"], "Library/Application Support/", APPNAME) + '/'
         else:
             print 'Could not find home folder, please report this message and your OS X version to the BitMessage Github.'
             sys.exit()