Hopefully fixed pip install

Hopefully fixed issue with setup.py that was preventing pip install welleng.

Say hello to the connector module

Introducing the connector module, the easy way to connect two points in space.

Visual module added

v0.1.6

Tidy up

Minor updates

• Minor updates to code.
• Changes to setup.py with addition of VERSION and requirements.txt.
• Dropping the "alpha" from the tag to assist in automation of versioning.

v0.1.3-alpha: Merge pull request #15 from jonnymaserati/dev

Bump version

Fix dependencies

Merge pull request #9 from jonnymaserati/dev

Fix setup dependencies

Ready for PyPi

Merge pull request #8 from jonnymaserati/dev

Bump version

v0.1.0-alpha

Housekeeping