Fixes in Dict
Add maybe, sandbox files
Revert changes for new VerbParts (those are now in vparts branch)
Remove PGFs from version control
Add PGF/empty
mhux now inflects in predV
Fix Ant Pres in predV
Rewrite copula_kien to properly inflect for polarity

As a result, I have changed some uses of `predV copula_kien` into
`CopulaVP` - but this may or may not be correct.
Also, considers merging the two and correctly using the VerbParts thing.
Remove NOEXIST stuff
Fix "ma" to "m'" when necessary, add TODO in ResMlt.Verb