implemented first version of JSON RPC server, updated Makefile
updated README to reflect JSON RPC server
Manually edited Makefile to merge in lynix's changes in commit b1762722c30f34d649d92cb8768c170e2ad67322 which was based on an older base
Merge pull request #39 from JinTu/devel

Sync to devel branch with lynix' JSON RPC code manually merged in