- Fixed: s2c is no longer required to be in the PATH

Should simplify troubleshooting when you try "make" with "make install". Then "./s2cctl start" silently fails because s2c is not in the PATH. Afterwards, space functions only as control but not as whitespace.

I modified the s2cctl script to assume that s2c is in the same directory as s2cctl. Additionally, the name of the logfile is printed at startup, which could also make troubleshooting easier.