remove unused zero-argument Body constructor
further sstring cleanups

chiefly move xmlescape to sys/comm.cc, but also remove various unused
methods
logging cleanups

* remove getLogType in favor of a std::map
* remove unused SystemLogComm cruft
necessary g++ build flags for previous commit
move more stuff to Config

* Config is now a global of Configuration rather than a static class
* Config partially converted to styleguide-compliant getters & setters
* Defaults defined with member variables (thanks C++11)
* move some globals and consts into Config:
  * main game TCP port
  * MUD_NAME and friends
  * WizLock flag & lock message
finish conversion of Config to new-style accessor naming