bin/console will prefer config file given as argument

Signed-off-by: Mark Rushakoff <mrushakoff@pivotallabs.com>
Install pry gem by default so bin/console works

Signed-off-by: Mark Rushakoff <mrushakoff@pivotallabs.com>
Initialize configuration better in bin/console

Signed-off-by: Mark Rushakoff <mrushakoff@pivotallabs.com>