Revert "Escape $$ character to $."

This reverts commit ef1a217bbb2b0abd21a630e6154ff8dc5e968caa.

src/zc/buildout/buildout.py

@@ -1295,7 +1295,6 @@ class Options(UserDict.DictMixin):
         self._raw = data
         self._cooked = {}
         self._data = {}
-        self._non_escaped_data = {}
 
     def _initialize(self):
         name = self.name
@@ -1357,17 +1356,11 @@ class Options(UserDict.DictMixin):
         v = '$$'.join([self._sub(s, seen) for s in v.split('$$')])
         self._cooked[option] = v
 
-    def get(self, option, default=None, seen=None, escaped=True):
-        if escaped:
-            try:
-                return self._data[option]
-            except KeyError:
-                pass
-        else:
-            try:
-                return self._non_escaped_data[option]
-            except KeyError:
-                pass
+    def get(self, option, default=None, seen=None):
+        try:
+            return self._data[option]
+        except KeyError:
+            pass
 
         v = self._cooked.get(option)
         if v is None:
@@ -1390,13 +1383,8 @@ class Options(UserDict.DictMixin):
             v = '$$'.join([self._sub(s, seen) for s in v.split('$$')])
             seen.pop()
 
-        self._non_escaped_data[option] = v
-        v = v.replace('$${', '${')
         self._data[option] = v
-        if escaped:
-            return self._data[option]
-        else:
-            return self._non_escaped_data[option]
+        return v
 
     _template_split = re.compile('([$]{[^}]*})').split
     _simple = re.compile('[-a-zA-Z0-9 ._]+$').match
@@ -1429,8 +1417,7 @@ class Options(UserDict.DictMixin):
             section, option = s
             if not section:
                 section = self.name
-            v = self.buildout[section].get(option, None, seen,
-                                           escaped=False)
+            v = self.buildout[section].get(option, None, seen)
             if v is None:
                 if option == '_buildout_section_name_':
                     v = self.name