Knowledge of save and load support is now read by file format loading
Modified the tuple to be passed across appdomain bounds for file formats

The can load and can save fields are passed across now
Fixed the property names for the file format tuple passed across boundaries
Fixed the tuple setup in FileFormatInitiator.cs
Fixed bugs in the main application relating to the changes in passed tuple
Merge branch 'signature-update' into signature-merge

Conflicts:
	src/main/MainForm.cs

Merged the file format tuple backing store from signature update with the
blacklist from experimental
Fixed flipped unpacked arguments for load and save support checks

I had unpacked the tuple to be load and then save when the order was save and
then load. This has been fixed.
Merge branch 'signature-update' into signature-merge

A bugfix has been imported dealing with the save/load differentiation