fixes issue #710 File view stripping empty lines from begininng and end of the file. Fixed by setting default Pygment lexer option to not do that

rhodecode/lib/vcs/nodes.py

@@ -362,10 +362,11 b' class FileNode(Node):'
         Returns pygment's lexer class. Would try to guess lexer taking file's
         content, name and mimetype.
         """
+
         try:
-            lexer = lexers.guess_lexer_for_filename(self.name, self.content)
+            lexer = lexers.guess_lexer_for_filename(self.name, self.content, stripnl=False)
         except lexers.ClassNotFound:
-            lexer = lexers.TextLexer()
+            lexer = lexers.TextLexer(stripnl=False)
         # returns first alias
         return lexer