DMX pads the samples. Interesting, isn't it?

Also added a couple delete[]s to a couple new[]s that didn't have them.
Merge branch 'master' of https://github.com/sirjuddington/SLADE
Merge branch 'master' of https://github.com/sirjuddington/SLADE
FluidSynth can now load several soundfonts

Also sound fonts and PNG tools now use their own dir_last.
Updating VC++2005 project file.
Add arrows & drop-down list to texture tabs

This fixes #19. Also prevented TextureXPanels from hiding or showing the
texture menu directly, since the order in which they are hidden and
shown when changing tabs cannot be relied upon. For example, going from
Doom's TEXTURE1 to TEXTURE2 would result in the texture menu
disappearing as TEXTURE2 was shown before TEXTURE1 was hidden...
Merge pull request #84 from Gaerzi/master

Sync with my fork.