Improve priests and add archerunit for prehistoric age.

[Lancelot5]

Would it somehow be possible to make priests in eec stronger. They are to weak and nearly useless. I think they should have more HP and Mana and maybe the ability to heal units with clicking.

If we have an archer unit,which could be upgraded in later ages, already in prehistoric age
It would improve the gameplay a lot . Because this creates more possibilties in 4vs4 p2n games.