Changed tab size to 4.
Merge branch 'fix_tab_size' into devel
Added -Wall, -Werror and -pedantic compilation flags.
Removed -Werror.
Merge branch 'pedantic' into devel
Fixed error.
error: ISO C does not permit named variadic macros [-Werror=variadic-macros]
Merge branch 'no_variadic_macros' into devel
Multiboot information structure defined.
Merge branch 'multiboot_info' into devel