Added a new command to the P2P protocol definitions to allow querying for support flags.
Implemented handling of new support flags command in net_node. Changed for_each callback template to include support flags. Updated print_connections command to show peer support flags.
Added p2p constant for signaling fluffy block support.
Added get_pool_transaction function to cryptnote_core.
Added new commands to cryptonote protocol for relaying fluffy blocks.
Implemented handling of fluffy block command in cryptonote protocol.
Enabled fluffy block support in node initial configuration.
Implemented get_testnet function in cryptonote_core.
Made it so that fluffy blocks only run on testnet.
time_t is implementation-, architecture-, and apparently
compiler-dependent. As an example, on my machine if I build a 64-bit
binary, sizeof(time_t) is 8, but for a 32-bit binary it's 4. uint64_t
is therefore much more consistent for serialization, given that RPC
calls are potentially made between different machines.
