Remove some accidental advertisements in de.txt and en.txt

check for account existence before asking passwords

handle response from IO result handler

Update German translation

Update Lua locale files

fix land object placement

use blocking recv in IO thread

Allow vgtBigExplosion in low quality mode Rationale: We already allow vgtExplosion, which is a smaller version. Without vgtBigExplosion, there is not *any* explosion effect.

Move resurrector and seduction distance to uConsts

Don't draw girder/resurrect/seduce circle while hog moves