removed Lidgren dll
adds lidgren submodule
submodule in place and project references setup, build ok
update entries on .gitignore for visual studio
compatible mode to earlier VS versions
adding xamarin studio ignores
gurnet compatible with mono
updates lidgren submodule HEAD status
VS .sln to 2012 and 2013
Merge branch 'master' into gurnet-server
fix reference problems after merged master