Execution of IO actions only works if hpage is executed from the command line

[jcpetruzza]

It looks that output is printed in the stdout which is only available if hpage is launched from the command line.

Input/Output should be taken from a new "console" window opened the first time an IO action is evaluated or from a "console section" in the gui (à la Eclipse).

[elbrujohalcon]

I thought at first it was a bug, but it's just saying "if you want to put something on the console and you don't have a console, you will not see it anywhere". I don't think it's really a bug. It's just a missing feature. So, I'll delay its implementation until the other, more important issues, are closed.