Before 0.6 addrProxy was a CAddress, but netbase changed it to CService. Retain compatibility by wrapping/unwrapping with a CAddress when saving or loading. This commit retains compatibility with 0.6.0rc1 (which wrote the setting as a CService) by trying to parse twice.
… the future (secs<0) Fixes #874.
Doing so would allow an attack on old nodes, which would relay a standard transaction spending a BIP16 output in an invalid way, until reaching a new node, which will disconnect their peer. Reported by makomk on IRC.
Don't show splash screen when -min is specified on the command line.