Fix - RPC_PORT to 9526
Image enhancements

Modified the nsis-header image size to correct dimensions. Colored send
arrows.
Checkpoint update to block 3621535

Included three new checkpoints.
Merge pull request #16 from m0gliE/fastcoin-8.7.2

Staging updates for Fastcoin 8.7.4
Revert "Staging updates for Fastcoin 8.7.4"
Merge pull request #17 from fastcoinproject/revert-16-fastcoin-8.7.2

Revert "nVersion bug fix."
Merge pull request #4 from fastcoinproject/fastcoin-8.7.4

Merging checkpoints from 8.7.4 including image enhancements & fixes.