Get rid of overloaded functions in uAmmo

uCommands compiles

Fix types

Don't add duplicates into string consts

this should enable png screenshots on osx as well

in uTouch dont use bools to represent keystrokes, but issue ParseCommands

fix the ammomenu F# buttons

- change uKeys to be event based rather than polling - missing engine+frontend exit - missing controller support - needs testing on different platforms and keyboards

case sensitivity + correct variable check

when libpng is not found, gratiously fallback to bmp screenshots; untested

ios minor warning and optimisation for team color

Make clouds/flakes change direction smoothly

Allow LIST command while in room to not annoy old frontends (0.9.17 or less) with warnings

added savepassword checkbox to options page, which now reloads values at every acces

add a checkbox for the password field prompt (issue #316)