Preliminary result of the software

This pull request contains the preliminary result of the FUCoin software as shown on our last meeting on thursday. Incorporated are the proposed changes and fixes from these issues: #1 (closed), #2 (closed), #7 (closed), #8 (closed), #9 (closed), #10 (closed), #12 (closed), #13 (closed) and #14 (closed). As a consequence we will close these issues as soon as this PR is merged. This should help to clear up which issues are already done and which still need some attention.

More code documentation and a Wiki page will follow within the next few days.