5. Refactoring of Application class: make copy/assignment operators private, disallow pointers to Application
3. remove dead code, refactor existing code. Connect overlooked signals.
1. make it compile
Migrate ruler position tracking to new track_widget API
Fixing more broken and split doc comments.
Remove more of libnr
Revert recent refactoring changes by johnce because they break the build, which cannot be fixed easily.
SPDocument->Document
on closing and document change, if this was the last view on this document, delete document to free up memory
NR:: => Geom:: for much of src/ui and src/widgets
allow multiple (balanced) calls to add and remove document
since the view and document are both managed by the collector, reffing the document from the view is totally unnecessary
add missing unref, which should hopefully address the document leak
moving trunk for module inkscape