More fixes and optimizations related to 1.26 release (RC3)

1. P2P fixes:

• eliminated potential communication stall when peers lost: !684 (merged)
• improve performance by eliminating possibility of pushing compressed and uncompressed version of a block (showed as duplicated handle_block in console log): !687 (merged)
• compression dictionaries update

2. Hived versioning improvements (reports correct version also for HAF embedded deployment): !686 (merged)
3. Speedup code processing regex filters specific to operations (common code for Account History and HAF): !664 (merged)