fixed issue with web-editor that didn't preserve executable bit

after editing files

rhodecode/lib/vcs/nodes.py

@@ -420,6 +420,7 b' class FileNode(Node):'
         """Returns filenode extension"""
         return self.name.split('.')[-1]
 
+    @property
     def is_executable(self):
         """
         Returns ``True`` if file has executable flag turned on.

rhodecode/model/scm.py

@@ -496,9 +496,9 b' class ScmModel(BaseModel):'
         # proper backend should then translate that into required type
         message = safe_unicode(message)
         author = safe_unicode(author)
-        m = IMC(repo)
-        m.change(FileNode(path, content))
-        tip = m.commit(message=message,
+        imc = IMC(repo)
+        imc.change(FileNode(path, content, mode=cs.get_file_mode(f_path)))
+        tip = imc.commit(message=message,
                        author=author,
                        parents=[cs], branch=cs.branch)