trdrop v1.0-beta.2

An update of the initial GUI release to tackle the current issues.

Some bugfixes:

• #36 - now we force the application to be fullscreen
• #35 - this should not happen anymore (does take up to ~300MB at max)
• #34 - this is fixed

Also added a simple icon for test purposes, but it looks rather bad, we'll try to fix this in the next release.