v1.1.7 Graph cleanup

Unconneced nodes removed by default
It was a switch before, but now all unconnected nodes will be removed - they provide no value or insight and.

Self-Loops removed
When A1 contains =A1 there is no value in representing that reference. If it is =A1*A2 we have a dependency to another cell, A2 and this is what we are after.
So no more selfloops either.

v1.1.6 Bugfix release

1.1.5 was broken.

v1.1.5

What's Changed

• General improvements by @dalager in #17
• Improved logging
• Better command line documentation with --help
• A lot of refactoring and housecleaning

Full Changelog: v1.1.0...v1.1.5

v1.1.0 Configurable visualization

• Adding --config argument to provide visualization settings from json config file

v1.0.0

• Better color handling
• Improved plot settings for very large sheets

v0.0.13

Full Changelog: v0.0.12...v0.0.13

v0.0.12

Full Changelog: v0.0.11...v0.0.12

v0.0.11

What's Changed

• Change to tab20b colormap which has no grays by @dalager in #12
• Update version from git tag by @dalager in #13

v0.0.10

What's Changed

• Missing scipy module by @dalager in #11

v0.0.9 Release

Merge pull request #8 from dalager/v0.0.9

V 0.0.9 version bump