Version 0.1.0

First version of the new app. Hurray!

Implemented features:

• Histograms for open/closed/combined points/grades
• Change passing limit and max points
• Change the boundary for each grade individually
• Require or not require that all exam parts have to be passed individually
• Average grades

Closes #54 (closed)

Closes #56 (closed)

Closes #57 (closed)

Closes #58 (closed)

Closes #70 (closed)

Closes #76 (closed)

Closes #78 (closed)

Progress on #81 (closed)

Closes #83 (closed)

Closes #84 (closed)

Progress on #85 (closed)