Hide "optimize" button

german translation update, mostly just adding wuzzy's suggested strings

issue #875: Fix faulty translation in German

scaling is not safe in multi at all using a team add. will use the first real team instead.

Make amGirder invisible in construction mode since it allows placing anywhere in fortress. Print "insufficient power" if placement was blocked due to that, to avoid confusing noobs.

this bugs me every time I look at it

hat fix

revert last commit

don't save alpha channel to screenshots when not needed

change speechfix implementation (no "continue" anymore

grmlgrml

change string types of speech bubbles fix to work with pas2c

dark magic: make "continue" statement work in pas2c-parsed for-loops. (would skip iteration and lead to infinite loops before)

cleanup speech bubble code a little. this fixes issue #719