Revert "Target timespan changed to 6 hours"
Revert "Target timespan changed to 6 hours"

This reverts commit 9e952ad66b880f43e9e5d9a9a0aed15815489f6a.

Crowndev/crowncoin,domob1812/crowncoin,domob1812/crowncoin,domob1812/crowncoin,Crowndev/crowncoin,Crowndev/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,domob1812/crowncoin,Crowndev/crowncoin,Crowndev/crowncoin,domob1812/crowncoin