Removed plugin.
Syntax folding is a dog in large PHP files.

Switched to indent-based folding for large PHP files that have
large value definitions or similar. Much improved performance.
Prevent warning

The function redefinition when altering the vimrc and reloading
is unencessary. Adding the ! override to squelch warnings and
errors about it.
Changing the behavior of LoadSession

Will load the session for the current folder if one exists and provided
there is no argument on the command line that tells vim to edit a
particular file.