Vipster

Improved architecture:

Load, combine and save without problems.
Edit trajectories and PW Parameters.
Acceptable Performance (abysmal load times).

Moved PBC functionality from GUI to Molecule class, improving performance and bond handling.
Also, bugfixes.

Initial Release
- Read coordinates from xyz, PW input and output files
- Read parameters from PW input file
- Save to PW Input oder xyz files
- Visualize configurations, trajectories, multiple cells
- Edit coordinates
- Show PW parameters