Create a deployment mechanism

- introducing two stages, beta and prod
- both are actually identical, but don't deploy to prod until you
  are sure, that your version is working
- always run deploy scripts from their folder
- client/deploy* simply copies files into appropriate locations
- server/deploy* compiles the code, runs tests and then copies the
  executable to the right place
- IMPORTANT! you might want to edit local versions of server deploy
  because I had to reexport variables there, if your GOPATH is
  different.
- As a side note, there should be specific folder structure for GO,
  I will expand on wiki sometime soon.