Exploding Diff

Gridcoin Research 3.2.1.4/8.95:
Mandatory Upgrade
MSI:
http://download.gridcoin.us/download/downloadstake/GridcoinResearch.msi

- Fixed critical attack vector (No exploits to date, discovered by Rob)
- Modified minimum PoR time between blocks to 4 hours (prevent
exponential diff)
- Added BL for investors & newbies to prevent minting below  threshold
(prevent exploding diff) 80% of the time (allow block to pass 20% of the
time for network performance):
a. For Veteran (0), Newbie (4), Newbie (5): Mint must be > 3 grc (IE
boinc miners with established mags)
b. For Investors : .50 grc

- Prevent minting 0 grc (exploding diff)
- Reduced stakeweight for newbie classes to half (exploding diff)
- Added Payment Timespan (Days) to Magnitude report.  This is only
active for new cpids (< 14 day age).  The idea here is to limit the RSA
from paying future payments before the CPID is mature.
Modified LTO(14 day) to honor the payment timespan.  Anyone with an RSA
> 14 days old is exempt from the rule.