Added RelationshipResolver.DefaultOpts().

For #83.
Gitignore: *.csproj.user

For #83
LatestAvailable throws exceptions once more.

For #83.
Allow making dirs in Tutorials, but not GameRoot.

For #83.
Revert whitespace change.

For #83.
Fix help message in cmdline, install -> upgrade.

For #83.
Merge pull request #1 from pjf/im_in_ur_pr83_changin_ur_files

Fixups for PR #83