heroku commands with app wrapper

heroku_wrapper.sh

## Usage
# $ project_staging logs 
# $ project_staging logs -t
# $ project_staging config:get MONGOHQ_URL
# $ project_staging run console

# $ project_production ps
# $ project_production logs -n 3 -p worker.4 -s app -t

function project_staging
{
  execute_heroku_command_with_app my_heroku_app_name_staging $@
}

function project_production
{
  execute_heroku_command_with_app my_heroku_app_name_production $@
}

function execute_heroku_command_with_app
{
  heroku ${@:2} --app=$1
}