Node footnotes

This simple module gets around the problem of incorrect footnote references being created in nodes when copy/pasting Word or OpenOffice documents with footnotes, by putting explicit page references into the anchors when nodes are created or updated.

It also removes footnote references from the teaser, since it does not seem very
appropriate for them to appear there.

NOTE: having just tested this functionality in 4.7.0 (using TinyMCE) it appears to work correctly without footnotes. Unless something strange happens, this probably therefore means that the module will not be upgraded to 4.7