Minor description edits
Tweaked link to Arno Schödl's NewtonScript overview.
Added link to NSM by Matej Horvat to the tools list. Issue #8
Added links to Matej Horvat's 'NTK tips & tricks' and 'Newton Formats errata' docs.
Linked to Matthew Faupel's NewtonScript bytecode documentation. Issue #9
Fixed broken MacTech.com links. Issue #10
Added newt.vim mirror
Added link to my NSUnit framework. Issue #11
Linked to Internet Archive copy of NewtonScript ByteCode
Moved id attributes to parent elements, removed superfluous anchor tags
Moved NSUnit from Development Tools section to Libraries section.
Added Gnue's NewtonScript presentation to the Documentation list. Issue #31
Merged in master.