Update README.md
Merge pull request #163 from JosephFerano/master

Added syntax folding to syntax file. Currently folds xml summaries only.
Merge pull request #165 from JosephFerano/master

Updating README for new folds
Fix indent plugin's error
Merge pull request #167 from thinca/fix-indent-plugin

Fix indent plugin's error
Move ctrlp extensions to the correct place

These should be placed under the namespace to avoid collision.
Merge pull request #168 from thinca/move-ctrlp-extensions

Move ctrlp extensions to the correct place
update submodule re #161