update overview page
fix issue coins
Merge branch 'qt' of https://github.com/fanatid/ngcccbase
Issue #81: fix history

The refactor with colorvalue screwed up some input values. Fixed this.
gui: scan at start. fixed address retrieval
add moniker unique check on add/create
some improvements
Merge pull request #82 from jimmysong/81

Issue #81: fix history
Merge branch 'qt' of https://github.com/fanatid/ngcccbase
fixed gui send