Add /opt/local/include/db48 only if it exists.
Move SendMoney() to rpcwallet.cpp.
Use RPC_INVALID_PARAMETER instead of RPC_WALLET_ERROR for invalid amount.
No return at the end of void function.
contrib: show pull # in prompt for github-merge script
Merge pull request #5449

6e6a36c contrib: show pull # in prompt for github-merge script (Wladimir J. van der Laan)
Merge pull request #5395

4c69ebe Add /opt/local/include/db48 only if it exists. (Pavel Janík)
Merge pull request #5399

4be639e Use RPC_INVALID_PARAMETER instead of RPC_WALLET_ERROR for invalid amount. No return at the end of void function. (Pavel Janík)
b93173d Move SendMoney() to rpcwallet.cpp. (Pavel Janík)
minor rework of SendMoney in rpcwallet

- rework the function to not log errors but use throw JSONRPCError
- remove a check for IsLocked() that is done in sendtoaddress and
  sendfrom RPC calls already
- cache GetBalance() return value, because it's possibly used twice
very minor include ordering cleanup for rpcwallet.cpp