Update filesystem structure

.gitignore

@@ -1,25 +1,19 @@
 iso_tmp_data
-initrd/system/include/*
-initrd/system/*.raw
-initrd/system/lib/*.raw
-!initrd/system/include/.gitkeep
+initrd/usr/include/*
+!initrd/usr/include/.gitkeep
 tools/*
 !tools/ExtMemDbg
 !tools/stage2_eltorito
 !tools/*.md
 !tools/*.css
 !tools/README.md
-!tools/menu.lst
 !tools/website
 !tools/Makefile
 !tools/*.c
 !tools/*.cpp
 !tools/*.cfg
-!tools/toolchain-binutils-gdb.patch
-!tools/toolchain-gcc.patch
 doxygen-doc
 initrd.tar.gz
-bootanim.tar.gz
 .dccache
 *.log
 *.log.*
@@ -27,7 +21,6 @@ bootanim.tar.gz
 *.iso
 *.drv
 *.fex
-*.elf
 *.a
 *.so
 *.o