Remove the twittering-mode submodule from the repository.
Install twittering-mode using el-get.
Merge branch 'twittering-mode-migration'
Remove the src/zencoding submodule from the repository.
Install zencoding-mode using el-get.
Merge branch 'zencoding-migration'
Replace the Twitter entry's tag.
Remove the plugins/yasnippet submodule from the repository.
Install yasnippet using el-get.
Merge branch 'yasnippet-migration'
Remove an unnessesary entry.

It remained commented-out.