Version 7.8.3 released

This release fixes several issues related to synchronizing, it's recommended for everyone.

Synchronization:

• Fixed issue where a corrupt cache would prevent bootstrap data from being sent.
• Fixed issue where multiple synchronization sessions would run at the same time
• Decreased the size of bootstrap commit transactions
• Flushing transactions less frequently during bootstrap
• Reducing memory usage during bootstrapping

Network:

• Tracking representatives and priority broadcasting transactions to them

• Reduced memory usage for tracking peers

• Removed a lot of unneeded logging