change target_tag_name of TagSynonym to target_tag (foreign key to Tag m...

[pcompassion]

...odel)

I find target_tag (as foreign key) is better than target_tag_name as you once mentioned.

I wasn't and am not sure if submitting south migrations file is a good idea but its there.

(I'll create a tag index using haystack/solr anyway and thought having simpler DB schema is better here. and maybe for DB query as well)

[evgenyfadeev]

This will be merged or otherwise implemented after releasing the Python3 version.

[IOrlandoni]

askbot/management/commands/rename_tags_id.py
askbot/models/question.py
askbot/models/tag.py
askbot/tests/management_command_tests.py