Mollusc

- Convert `sh.working_dir` from property to function
- Added `rel` keyword arg into `sh.path()`
- Removed `sh.abspath()` and `sh.relpath()`
- Add `mollusc.dist:Twine`


[bootstrap 0.0.6 - 2017-11-17](https://github.com/bachew/mollusc/commit/3f6a64e4b96cc52717d612295d5c109304b4c230)

- Improved help


[bootstrap 0.0.5 - 2017-11-16](https://github.com/bachew/mollusc/commit/494afcadb49b25086f88bee78f470fbe67273cb7)

- Improved help and description
- Added `-n/--no-venv` option
- Start shell after running command

Added:

- `sh.path`
- `sh.abspath`
- `sh.relpath`
- `sh.remove`
- `sh.glob`


[bootstrap 0.0.4 - 2017-11-15](https://github.com/bachew/mollusc/commit/04a2343bcbfb960b9407fcd059af07b6a8248b90)

- Removed `venv_dir` configuration