Updated readme.md

Updated readme.md and changed local.bat's name to StartClient to be more
indicative of what its purpose is.
Readme, enet.h, CMakeLists.txt Updates

Updated the Readme.md to be very explanatory.
Updated enet.h to compile with MinGW on Windows.
Updated CMakeLists.txt to include necessary libraries when compiling on
Windows.

Added GenerateMakefiles.bat to automatically create makefiles using
CMake.
Added CompileServer.bat to use mingw32-make to make the server.

I am considering moving the batch files to the win directory .
Readme formatting fixes

Readme formatting fixes
Merge pull request #1 from chutch1122/master

Windows Compiling