+ added makefile.linux for linux compilation
* fixed pointer errors related to a lot of entity code
* sky is now only drawn in scenes that require it
* changed sprites.txt to use proper case in the filenames as required by linux
* changed size of hit.bmp
- removed pixel scaling feature (incomplete, mostly worthless)
Merge branch 'master' of https://github.com/SheridanR/BSDL.git

* 'master' of https://github.com/SheridanR/BSDL.git:
  + added makefile.linux for linux compilation * fixed pointer errors related to a lot of entity code * sky is now only drawn in scenes that require it * changed sprites.txt to use proper case in the filenames as required by linux - removed pixel scaling feature (incomplete, mostly worthless)