Fixed server issues with sound & nested iterator
Bugfixes: Fixed a bug in the distance algorithm; attack now correctly ensures that a unit is within sight range of the target
Adjusted anim speed to vary with move distance, removed hud on moving units, resized units to fit within hex
Working on adding better support for multiple resolutions

- added ldpi, mdpi, hdpi, xhdpi exports
- added 'size' property to TextureManager (still need to actually set the size somehow)