Changelog for raketka-1.2.0

1.2.0
remove dependency on tagged package

error message in case of incorrect args

add legacy_libc flag

+ .gitignore
1.1.3
fix broken build. Reason: missing -main-is ghc-option
1.1.2
fix broken build. Reason: API change in dependency network-transport-tcp
split Main to 2 funs  
1.1.1
change common state from TVar s to s

pass init common state  
1.1
add custom state to Server

peer state type is a configurable param

note : package build may fail 

due to version clash between aeson, vector, primitive packages

https://github.com/ciez/vector is a patched version of vector-0.11.0.0

I do not claim to have any knowledge about vector package workings. 

Did basic refactoring: moved some code to a different module and followed some GHC suggestions. It builds and it works with raketka.  
1.0
start multiple nodes

on start nodes ping suggested (in config) nodes - which pong back - and establish monitored connections