Update tutorials and increase their visibility

[Erik Johansson]

The old tutorials (found in scenario->demo maps) are now outdated. They should be reworked using triggers, and we should make them more obvious: for example with a link in the learn to play manual (though I think this requires other patches first).

I am bumping the priority of this as having tutorials is important to capturing new players.

[Erik Johansson]

I was using an outdated version of 0 A.D. so the first bug was not accurate. (The bane of having more than one installation, and not remembering which one the icon in the task bar is linked to :P )

[Erik Johansson]

I did notice two other things while playing through it again (on 2X the speed as it took quite some time the first time =) ):

I got the "Now you're in Civ phase, build a fortress and then build two siege rams" message at the same time as the "Now you can research Civ phase" message".

I also got the "The enemy's base has been spotted..." message at the same time as the messages about scouting for it, despite not having gotten any enemy territory/buildings in my LOS.

[Adrián Chaves]

Issues reported at Transifex about both the introductory and the economic tutorials:

• ​https://www.transifex.com/projects/p/0ad/translate/#nl/public/24522000
• ​https://www.transifex.com/projects/p/0ad/translate/#pt_PT/public/24521943

[Stan]

Maybe something should be done for A19 ? lol

[Lionkanzen]

Yeah, specially with new feature and exclusive features.