Initial Beta Release

What's Changed

• Development by @ThMountainMan in #2
• Bugfixes in several files by @ThMountainMan in #3
• Dev by @ThMountainMan in #4
• Fix Master Branch by @ThMountainMan in #5

Full Changelog: v0.1-alpha...v0.2-beta

Initial Release of the Invoice Tracker

This is the initial Release of the Invoie Tracker Tool.
Expect things to be broken but also some stuff works as expected.