Merge pull request nushell#1097 from jonathandturner/fix_workspace

Fix the workspace I commented out

Update README.md

Update Cargo.toml

Update README.md

Merge pull request nushell#835 from t-hart/from-ssv/variable-separator

`from-ssv`: user-defined number of spaces to split on

Merge pull request nushell#700 from nushell/bump-heim

Bump heim

Merge pull request #341 from orf/git2-fix

Disable default git2 features