[REMOVE] Allow gcc 4.7 and later
Remove files inadvertently added
PathRequests object to own all path requests.
SHAMapSync cleanups and performance improvements
Order book subscribe cleanups.
Add LES::dirIsEmpty function to check if a directory is empty
Reduce log priorities.
Add io_latency_probe
Limit legacy pathfinding requests
SHAMapSync bugfix. Cannot avoid push in getMissingNodes
Refactor KeyCache