• Add only one spending zerocoin tx into block

• Fixed Reindex Issue
• The binary file will be sign tomorrow, it is uploaded in case someone want to use it first.

MacOS : https://github.com/sschepis/zcoin-macosx-binaries

Please be cautious !
The software is in EXPERIMENT phase following the library (https://github.com/Zerocoin/libzerocoin).