[import] allows you to manipulate load library into the patch-local
path from within a Pd patch itself.  This is a very simple version
that does not need any modifications to the core of Pd.  Therefore,
you should make [import] the first object you create in your patch.

To install, copy the "import" folder into your user Pd folder.  You
can find out more here:
http://puredata.info/docs/faq/how-do-i-install-externals-and-help-files-with-pd-extended

For more info on the structure of libdirs, see this webpage:
http://puredata.org/docs/developer/Libdir